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Cheap flights from London to Seattle from £222

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LON — SEA
20 May — 27 May1
1 adult
Pzt 20/5
Pzt 27/5

The best prices from London to Seattle/Tacoma Intl are usually found in November or February, booked 43 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from London to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 Mayıs 2024.

Popular in

July

Cheapest in

November

Round-trip from

£462

One-way from

£222
High demand for flights, 23% potential price rise
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Best time to find cheap flights, 18% potential price drop
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From London (LON) to Seattle/Tacoma Intl
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One-way flight from London (LON) to Seattle/Tacoma Intl
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What is the cheapest day to fly round-trip from London to Seattle?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 16% on the overall cost on flights from London to Seattle.

How far in advance should I book a flight from London to Seattle?

Travelers have found it’s best to book a flight 44 days in advance to save up to 35% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Seattle 1-2 weeks in advance for as low as £533, or £732 for flights within the next 24 hours.

What is the cheapest month to fly from London to Seattle?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Seattle. Flights to Seattle from London in November are about £550 on average during November, but can be found for as low as £302.

When is the cheapest time to fly from London to Seattle (LON - SEA)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 8% on flights from London to Seattle by exploring options for tickets in the evening.

Cheap Lufthansa flights from London to Seattle

Explore cheap flight options specifically provided by Lufthansa for the route between London and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.
Check out some of the cheapest Lufthansa flights we've come across from London to Seattle. Be sure to come back soon if the deals available don't appeal to you at this time.
Sal 5/1107:40LHR - SEA
1 stop17h 25mLufthansa
Pzt 11/1106:31SEA - LHR
1 stop17h 24mLufthansa
Deal found 14/5£463
Per 19/910:35LHR - SEA
1 stop33h 44mLufthansa
Cmt 28/919:46SEA - LHR
1 stop27h 09mLufthansa
Deal found 14/5£484
Cmt 21/906:30LHR - SEA
2 stops16h 00mLufthansa
Çar 2/1013:30SEA - LHR
1 stop14h 15mLufthansa
Deal found 13/5£503
Sal 21/508:30LHR - SEA
1 stop18h 15mLufthansa
Sal 28/510:40SEA - LHR
2 stops17h 10mLufthansa
Deal found 14/5£615
Cmt 25/513:05LHR - SEA
1 stop17h 18mLufthansa
Pzt 27/515:10SEA - LHR
1 stop14h 10mLufthansa
Deal found 14/5£627

  • One of the most popular airlines travelling from London to Seattle is Lufthansa. Flights from Lufthansa travelling this route typically cost £619.82 RT. This price is typically 75% cheaper than other airlines that offer London to Seattle flights. When booking this route, the cheapest RT price found was £323. The most popular departure airport in London when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London to Seattle, Lufthansa flights are 7% more popular than any other airline flying that same route.

Cheap American Airlines flights from London to Seattle

Explore cheap flight options specifically provided by American Airlines for the route between London and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.
Browse through some of the cheapest American Airlines flights travelling from London to Seattle. Ensure the flight price, dates, time, and airline match your criteria before you book.
Cum 1/1111:45LHR - SEA
2 stops18h 07mAmerican Airlines
Çar 27/1118:45SEA - LHR
Nonstop9h 20mAmerican Airlines
Deal found 14/5£501
Per 31/1015:00LGW - SEA
2 stops36h 50mAmerican Airlines
Pzt 4/1123:45SEA - LGW
2 stops24h 20mAmerican Airlines
Deal found 14/5£551
Pzt 20/512:15LHR - SEA
1 stop17h 41mAmerican Airlines
Pzt 27/506:00SEA - LHR
1 stop17h 30mAmerican Airlines
Deal found 13/5£560
Sal 11/609:50LHR - SEA
Nonstop9h 45mAmerican Airlines
Sal 18/605:53SEA - LHR
1 stop17h 47mAmerican Airlines
Deal found 13/5£563
Per 26/916:00LHR - SEA
Nonstop9h 45mAmerican Airlines
Cmt 5/1019:40SEA - LHR
Nonstop9h 20mAmerican Airlines
Deal found 14/5£565
Sal 28/509:50LHR - SEA
Nonstop9h 45mAmerican Airlines
Sal 4/613:30SEA - LHR
Nonstop9h 20mAmerican Airlines
Deal found 14/5£570
Sal 4/609:50LHR - SEA
Nonstop9h 45mAmerican Airlines
Pzt 17/612:25SEA - LHR
1 stop14h 05mAmerican Airlines
Deal found 14/5£571
Sal 21/515:35LHR - SEA
1 stop15h 30mAmerican Airlines
Paz 2/623:59SEA - LHR
1 stop14h 11mAmerican Airlines
Deal found 14/5£575
Pzt 20/509:15LHR - SEA
1 stop20h 41mAmerican Airlines
Paz 26/501:15SEA - LHR
1 stop21h 10mAmerican Airlines
Deal found 13/5£579

  • One of the most popular airlines travelling from London to Seattle is American Airlines. Flights from American Airlines travelling this route typically cost £777.23 RT. This price is typically 64% cheaper than other airlines that offer London to Seattle flights. When booking this route, the cheapest RT price found was £560. The most popular departure airport in London when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London to Seattle, American Airlines flights are 4% more popular than any other airline flying that same route.

Cheap London to Seattle flights in May & June 2024

Find cheap flight options from London to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 849,850 searches. Prices were last updated on 15 Mayıs 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Pzt 10/609:50LHR - SEA
Nonstop9h 45mMultiple Airlines
Pzt 17/607:06SEA - LHR
1 stop23h 19mMultiple Airlines
Deal found 14/5£461
Çar 29/521:15LGW - SEA
2 stops23h 10mMultiple Airlines
Pzt 3/614:15SEA - LGW
2 stops22h 20mMultiple Airlines
Deal found 14/5£466
Sal 11/613:00LGW - SEA
1 stop30h 20mIcelandair
Pzt 24/623:00SEA - LGW
1 stop28h 45mIcelandair
Deal found 14/5£484
Cmt 15/613:00LGW - SEA
1 stop30h 20mIcelandair
Pzt 23/915:50SEA - LGW
1 stop11h 55mIcelandair
Deal found 14/5£485
Cmt 15/621:25LHR - SEA
1 stop21h 55mIcelandair
Pzt 23/915:50SEA - LHR
1 stop20h 30mIcelandair
Deal found 14/5£485
Per 13/620:45LGW - SEA
3 stops32h 31mMultiple Airlines
Per 20/607:40SEA - LGW
2 stops26h 40mMultiple Airlines
Deal found 14/5£486
Sal 28/521:25LHR - SEA
1 stop21h 55mIcelandair
Pzt 3/618:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 14/5£487
Pzt 3/621:25LHR - SEA
1 stop21h 55mIcelandair
Pzt 10/618:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 13/5£489
Pzt 10/621:25LHR - SEA
1 stop31h 10mIcelandair
Pzt 17/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 14/5£492

London to Seattle 2024 flight deals

Discover exclusive flight deals for travel between London and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Çar 11/913:00LGW - SEA
1 stop15h 35mIcelandair
Sal 24/918:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 15/5£412
Çar 11/921:25LHR - SEA
1 stop31h 10mIcelandair
Sal 24/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 15/5£414
Sal 10/913:00LGW - SEA
1 stop12h 55mIcelandair
Pzt 23/918:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 15/5£416
Sal 10/913:05LHR - SEA
1 stop12h 50mIcelandair
Pzt 23/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 15/5£416
Pzt 2/921:25LHR - SEA
1 stop21h 55mIcelandair
Cmt 7/923:00SEA - LHR
1 stop13h 20mIcelandair
Deal found 15/5£423
Per 12/913:00LGW - SEA
1 stop15h 35mIcelandair
Paz 22/918:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 15/5£424
Pzt 2/921:25LHR - SEA
1 stop21h 55mIcelandair
Pzt 16/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 15/5£425
Per 12/913:10LHR - SEA
1 stop15h 25mIcelandair
Paz 22/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 15/5£426
Cmt 2/1112:15LHR - SEA
1 stop12h 45mIcelandair
Paz 3/1114:35SEA - LHR
1 stop12h 20mIcelandair
Deal found 15/5£431

Direct flights to Seattle from London

Discover direct flight options from London to Seattle. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.
If you're seeking options on non-stop flights from London to Seattle, check out these fares. Those looking to potentially save on 1 or 2-stop flights from London to Seattle should utilise the search form at the top of the page.
Per 24/1016:50LHR - SEA
Nonstop10h 25mMultiple Airlines
Per 31/1019:05SEA - LHR
Nonstop9h 35mMultiple Airlines
Deal found 14/5£435
Cum 1/1114:50LHR - SEA
Nonstop9h 55mMultiple Airlines
Çar 27/1118:45SEA - LHR
Nonstop9h 20mMultiple Airlines
Deal found 14/5£465
Sal 22/1009:50LHR - SEA
Nonstop9h 45mFinnair
Per 31/1019:45SEA - LHR
Nonstop9h 20mFinnair
Deal found 15/5£471
Sal 5/1116:35LHR - SEA
Nonstop10h 25mVirgin Atlantic
Pzt 11/1115:20SEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 14/5£473
Sal 5/1109:25LHR - SEA
Nonstop10h 00mMultiple Airlines
Pzt 11/1118:45SEA - LHR
Nonstop9h 20mMultiple Airlines
Deal found 14/5£491
Çar 18/916:50LHR - SEA
Nonstop10h 30mDelta
Sal 1/1016:30SEA - LHR
Nonstop9h 20mDelta
Deal found 14/5£502
Per 19/916:50LHR - SEA
Nonstop10h 30mVirgin Atlantic
Per 3/1016:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 14/5£520
Per 31/1014:50LHR - SEA
Nonstop9h 55mBritish Airways
Çar 27/1118:45SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 14/5£523
Cum 20/912:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Sal 8/1016:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 14/5£526

London to Seattle flights leaving soon

Find last-minute flight options from London to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.
Consider one of these great deals we found on last-minute flights from London to Seattle. To prevent any unwanted surprises, users should verify their flight info before booking.
Cmt 25/510:00LGW - SEA
3 stops37h 55mMultiple Airlines
Çar 10/717:15SEA - LGW
1 stop33h 40mMultiple Airlines
Deal found 14/5£533
Çar 22/514:05LHR - SEA
1 stop15h 11mAir Canada
Sal 28/513:10SEA - LHR
1 stop16h 10mAir Canada
Deal found 14/5£546
Çar 22/509:30LHR - SEA
1 stop19h 46mAir Canada
Per 30/510:40SEA - LHR
2 stops15h 20mAir Canada
Deal found 14/5£554
Sal 21/511:45LHR - SEA
1 stop12h 55mDelta
Sal 28/513:30SEA - LHR
1 stop12h 30mDelta
Deal found 14/5£557
Sal 21/508:30LHR - SEA
1 stop15h 09mUnited Airlines
Pzt 27/512:45SEA - LHR
1 stop12h 55mUnited Airlines
Deal found 14/5£559
Pzt 20/512:15LHR - SEA
1 stop17h 41mAmerican Airlines
Pzt 27/506:00SEA - LHR
1 stop17h 30mAmerican Airlines
Deal found 13/5£560
Cum 24/513:00LHR - SEA
1 stop16h 50mMultiple Airlines
Pzt 27/519:40SEA - LHR
Nonstop9h 20mMultiple Airlines
Deal found 14/5£561
Sal 21/511:15LHR - SEA
1 stop17h 35mAmerican Airlines
Sal 28/512:09SEA - LHR
1 stop16h 01mAmerican Airlines
Deal found 14/5£563
Pzt 20/509:50LHR - SEA
Nonstop9h 45mBritish Airways
Pzt 27/523:59SEA - LHR
1 stop14h 11mBritish Airways
Deal found 13/5£564

One-way flights to Seattle from London

Search for one-way flight options from London to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.
Take a look at some of the one-way flights we've detected from London to Seattle. Users can also find round-trip London to Seattle flights by using the search form above.
Sal 17/912:00LGW - SEA
1 stop16h 21mMultiple Airlines
Deal found 14/5£222
Sal 8/1012:00LGW - SEA
1 stop15h 01mMultiple Airlines
Deal found 14/5£223
Pzt 3/620:25LHR - SEA
3 stops44h 07mMultiple Airlines
Deal found 14/5£230
Per 19/912:00LGW - SEA
1 stop15h 01mMultiple Airlines
Deal found 14/5£235
Per 26/912:00LGW - SEA
1 stop15h 01mMultiple Airlines
Deal found 15/5£245
Per 10/1012:00LGW - SEA
1 stop15h 01mMultiple Airlines
Deal found 14/5£246
Pzt 10/620:50LGW - SEA
3 stops55h 19mMultiple Airlines
Deal found 14/5£253
Cum 31/507:05LHR - SEA
3 stops33h 40mMultiple Airlines
Deal found 14/5£254
Çar 4/910:45LGW - SEA
2 stops30h 00mMultiple Airlines
Deal found 15/5£256

Find flights from London to Seattle within your budget

Customise your flight search to find flights from London to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£412 - £510

Route

Depart

Return

Price

London GatwickSeattle/Tacoma Intl

LGW - SEA

LGWSEA

London Gatwick

Çar 11/9

1 stop15h 35m

Seattle/Tacoma Intl

Sal 24/9

1 stop32h 50m

£412

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Per 24/10

Nonstop10h 25m

Seattle/Tacoma Intl

Per 31/10

Nonstop9h 35m

£435

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Sal 5/11

1 stop17h 25m

Seattle/Tacoma Intl

Pzt 11/11

1 stop17h 24m

£463

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Sal 5/11

1 stop14h 00m

Seattle/Tacoma Intl

Pzt 11/11

Nonstop9h 35m

£471

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Çar 25/9

2 stops19h 56m

Seattle/Tacoma Intl

Sal 8/10

1 stop17h 26m

£474

London GatwickSeattle/Tacoma Intl

LGW - SEA

LGWSEA

London Gatwick

Pzt 23/9

2 stops19h 36m

Seattle/Tacoma Intl

Paz 6/10

1 stop27h 05m

£481

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Sal 17/9

1 stop35h 34m

Seattle/Tacoma Intl

Sal 1/10

1 stop14h 40m

£493

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Cum 1/11

2 stops18h 07m

Seattle/Tacoma Intl

Çar 27/11

Nonstop9h 20m

£501

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Cmt 2/11

2 stops19h 24m

Seattle/Tacoma Intl

Çar 27/11

2 stops17h 20m

£510

Flights are sorted by cheapest first

Deals found on 15/5

When is the best time to book a flight from London to Seattle?

Use this chart to determine the optimal time to book a return flight from London to Seattle. Price data was last updated on 10 May 2024.
Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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When is the cheapest time to fly from London to Seattle?

Use this chart to determine the cheapest time to fly return from London to Seattle. Price data was last updated on 12 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Seattle by month

Plan your trip from London to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from London to Seattle is currently £240 while a return flight costs £471. Price data was last updated on 12 May 2024.

Currently, December is the cheapest month in which you can book a flight from London to Seattle (average of £583). Flying from London to Seattle in July is currently the most expensive (average of £799). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

£483

February

£470

March

£500

April

£514

May

£533

June

£605

July

£632

August

£607

September

£541

October

£519

November

£474

December

£461

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 15 Mayıs 2024.
Read through reviews of airlines operating flights from London to Seattle, such as Lufthansa, American Airlines and Air Canada. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very Good
10,691 reviews
Delta
8.0
Very Good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very Good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

SWISS
7.8
Good
1,996 reviews
Delta
8.0
Very Good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Finnair
7.8
Good
1,378 reviews
Delta
8.0
Very Good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Virgin Atlantic
7.7
Good
736 reviews
Delta
8.0
Very Good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from London to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from London?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from London. Booking flights from London to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 21 daily inbound flights from London from 14 different airlines.

  • Can I find flights from London to Seattle for under £500 on Cheapflights?

    Yes, there are multiple flights from London to Seattle for under £500. The cheapest flight booked recently is on Icelandair for just £412, but on average you can expect to pay £448.

  • Are there nonstop flights from London to Seattle for under £500 on Cheapflights?

    Cheapflights has at least 20 direct flights from London to Seattle under £500. A good price for a nonstop flight from London to Seattle is less than £518.

  • Are there last-minute flights available from London to Seattle for under £600?

    There are currently 20+ open flights from London to Seattle within the next 7 days for less than £600.

  • What are the cheapest airlines flying from London to Seattle round-trip?

    Icelandair, at £412, was found to be the cheapest airline from London to Seattle.Alternate airlines flying return to your destination include Lufthansa and Virgin Atlantic. Icelandair is priced at 24% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from London to Seattle?

    When deciding which route to take from London to Seattle consider London Heathrow - Seattle/Tacoma Intl, London Gatwick - Seattle/Tacoma Intl or London City - Seattle/Tacoma Intl as they are the most popular.

  • What are the most popular airlines that fly from London to Seattle?

    Before booking your flight from London to Seattle check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

  • What are the most reliable airlines from London to Seattle?

    Consider Air France (77%), Delta (77%) or Virgin Atlantic (77%) when booking your flight. These represent the most reliable airlines when flying from London to Seattle.

  • What are the cheapest flights from London to Seattle?

    On average you can expect to pay £2,271 for a flight from London to Seattle. The cheapest flight overall is £498 while the most popular route, (London Heathrow - Seattle/Tacoma Intl) is currently priced at £435.

  • What does LHR to SEA mean?

    London Heathrow Airport is LHR and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

  • Can I find deals for flights from London to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your London to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from London to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter London to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from London to Seattle that include hotel bookings?

    Yes. In addition to deals on London to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Seattle.

  • Can I find deals for business class flights from London to Seattle?

    Yes. Cheapflights offers flight deals from London to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from London to Seattle that allow pets onboard?

    Many airlines flying from London to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from London to Seattle?

    Yes, you can often find last-minute deals on London to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London to Seattle flight deals updated?

    The London to Seattle flight deals you see on this page were last updated on 15/5.

See more FAQs

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Fly from London to Seattle on these airlines
Choose from the following airlines for your flight from London to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 15 Mayıs 2024.

Virgin Atlantic flights from London to Seattle/Tacoma Intl
British Airways flights from London to Seattle/Tacoma Intl
Finnair flights from London to Seattle/Tacoma Intl

Top 10 airlines flying from London to Seattle

Discover the top 10 airlines that operate flights from London to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 849,850 searches. Data last updated 15 Mayıs 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£255Average£491FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest£339Average£523FlexibilityNo cancel feeOn-time70%
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Virgin AtlanticCheapest£391Average£612FlexibilityNo cancel feeOn-time72%
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IcelandairCheapest£396Average£565FlexibilityNo cancel feeOn-time76%
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Air CanadaCheapest£428Average£505FlexibilityNo cancel feeOn-time67%
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American AirlinesCheapest£432Average£581FlexibilityNo cancel feeOn-time71%
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LufthansaCheapest£440Average£574FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£441Average£512FlexibilityNo cancel feeOn-time69%
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KLMCheapest£443Average£615FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£445Average£581FlexibilityNo cancel feeOn-time76%
Search Finnair flights
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Search flights from London to Seattle by cabin class

Find flights from London to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from London to Seattle

Find hourly flight availability from London to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 Mayıs 2024.
1%of flight departuresEarly morningMidnight to 6 am
43%of flight departuresMorning6 am to noon
56%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
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6 PM

Weekly flight availability from London to Seattle

Explore weekly flight availability from London to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 Mayıs 2024.
Monday20daily flights
Tuesday24daily flights
Wednesday20daily flights
Thursday20daily flights
Friday20daily flights
Saturday25daily flights
Sunday20daily flights

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How does Cheapflights help users find flights from London to Seattle?

Cheapflights makes it easy to find London to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Seattle with no change fees?

Certainly. Search results for flights to Seattle from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from London to Seattle become cheaper?

Yes, Cheapflights offers price alerts on London to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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