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Cheap flights from Washington to London from £182

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LON
26 Nov — 3 Dec1
1 adult

Find flights from Washington to London within your budget

Customise your flight search to find flights from Washington to London 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 939,815 searches. Data last updated 21 November 2024.

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Fly to

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Route

Depart

Return

Price

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 22/4

18:55-14:40

1 stop11h 45m

London Gatwick

Fri 2/5

15:40-20:35

1 stop12h 55m

£484

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Fri 18/4

18:55-20:20

1 stop17h 25m

London Heathrow

Wed 30/4

13:05-17:40

1 stop12h 35m

£485

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 13/1

14:35-10:55

1 stop12h 20m

London Gatwick

Tue 28/1

08:15-00:14

3 stops47h 59m

£485

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 14/1

14:35-10:50

1 stop12h 15m

London Heathrow

Sun 19/1

08:20-14:21

2 stops38h 01m

£493

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 21/1

19:05-10:10

1 stop31h 05m

London Heathrow

Fri 7/2

06:30-18:24

2 stops19h 54m

£495

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 21/1

10:10-07:10

2 stops37h 00m

London Heathrow

Fri 7/2

06:30-18:24

2 stops19h 54m

£497

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 12/3

10:10-09:20

2 stops16h 10m

London Heathrow

Wed 19/3

14:30-09:34

2 stops26h 04m

£498

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Fri 24/1

15:15-12:50

1 stop13h 35m

London Heathrow

Mon 27/1

14:50-14:21

1 stop31h 31m

£500

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 16/4

13:32-10:20

1 stop12h 48m

London Heathrow

Wed 14/5

09:30-16:00

1 stop14h 30m

£503

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 13/1

10:35-10:10

1 stop15h 35m

London Heathrow

Tue 28/1

06:30-18:30

2 stops20h 00m

£507

Flights are sorted by cheapest return flights first.

Deals found on 21/11

Showing 1-10 of 60 results
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Cheap flight deals from Washington to London

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to London (LON). 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 21 November 2024.

Find flight deals from Washington to London

Cheapest flights from Washington to London
Explore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Mon 30/1214:35SEA - LGW
1 stop12h 20mIcelandair
Fri 17/111:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 20/11£489
Tue 3/1205:45SEA - LGW
2 stops20h 50mMultiple Airlines
Tue 14/112:00LGW - SEA
1 stop20h 14mMultiple Airlines
Deal found 20/11£493
Sun 29/1210:35SEA - LHR
1 stop15h 35mLufthansa
Tue 14/106:30LHR - SEA
2 stops20h 00mLufthansa
Deal found 19/11£499
Sun 29/1217:45SEA - LHR
Nonstop9h 25mVirgin Atlantic
Tue 14/106:20LHR - SEA
1 stop13h 00mVirgin Atlantic
Deal found 19/11£502
Tue 3/1214:35PDX - LHR
2 stops22h 25mMultiple Airlines
Wed 11/1207:50LHR - PDX
2 stops17h 00mMultiple Airlines
Deal found 19/11£505
Tue 31/1205:00PDX - LGW
1 stop21h 35mMultiple Airlines
Sun 12/112:00LGW - PDX
1 stop29h 21mMultiple Airlines
Deal found 20/11£505
Sun 29/1205:45SEA - LHR
1 stop20h 25mMultiple Airlines
Tue 14/106:35LHR - SEA
1 stop14h 45mMultiple Airlines
Deal found 20/11£506
Sun 29/1205:45SEA - LHR
1 stop20h 25mUnited Airlines
Tue 14/106:35LHR - SEA
1 stop14h 45mUnited Airlines
Deal found 20/11£509
Sun 29/1218:55SEA - LHR
Nonstop9h 45mDelta
Tue 14/110:00LHR - SEA
1 stop33h 50mDelta
Deal found 20/11£510
Sat 28/1219:05PDX - LHR
1 stop31h 05mAir Canada
Thu 9/113:00LHR - PDX
1 stop13h 24mAir Canada
Deal found 20/11£520
Sun 29/1205:45SEA - LHR
2 stops19h 35mAir Canada
Tue 14/118:00LHR - SEA
2 stops28h 30mAir Canada
Deal found 19/11£525
Tue 3/1214:35PDX - LGW
1 stop12h 20mIcelandair
Sun 8/1211:55LGW - PDX
1 stop12h 55mIcelandair
Deal found 21/11£525

Best time to book a flight from Washington to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Washington to London

Get recent, data-driven insights about flights from Washington to London including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from State of Washington to London?

Currently, January is the cheapest month in which you can book a flight from State of Washington to London (average of £112). Flying from State of Washington to London in July is currently the most expensive (average of £160). 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.

What is the cheapest time of day to fly from WA to LON?

Find hourly flight availability from Washington to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 November 2024.

When flying from State of Washington to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from State of Washington to London

Explore weekly flight availability from Washington to London. 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 21 November 2024.

The most flights from USWA to LON are scheduled on a Tuesday (18 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 21 November 2024.
Peruse reviews from past customers who have flown with Air Canada, WestJet and Finnair from Washington to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,756 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,756 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,637 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines to fly from State of Washington to London one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £194. WestJet flights start at £207 while deals on Scandinavian Airlines start at £288 one-way.

  • What are the most popular routes from State of Washington to London?

    The most popular route from State of Washington to London is Seattle/Tacoma Intl - London Heathrow. You may also consider Seattle/Tacoma Intl - London Gatwick or Seattle/Tacoma Intl - London City.

  • What are the most reliable airlines from State of Washington to London?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to London on time: KLM (76%), Air France (76%), Delta (76%).

  • What are the cheapest flights from State of Washington to London?

    On average you can expect to pay £1,120 for a flight from State of Washington to London. The cheapest flight overall is £313 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £435.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from State of Washington to London?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to London (average of £112). Flying from State of Washington to London in July is currently the most expensive (average of £160). 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.

See more FAQs

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Alternative routes for Washington to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Washington to London

Discover the top 4 airlines that operate flights from Washington to London. 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 939,815 searches. Data last updated 21 November 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£394Average£500FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£468Average£606FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£474Average£667FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£488Average£803FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Washington to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Washington to London 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 Washington to London with no change fees?

Yes! Cheapflights helps users easily find flights from Washington to London with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Washington today and book when prices fit your budget.

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