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Cheap flights from London Heathrow Airport to Washington from £416

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
4 Jan — 11 Jan1
1 adult

Cheap flight deals from Heathrow to Washington

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Washington (USWA). 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 30 December 2024.

Round-trip from

£471

One-way from

£416
Lufthansa
  • Lufthansa
  • 21/3-29/3
  • 2 total stops
  • 32h 25m total
  • London to Washington
Search Deals
Icelandair
  • Icelandair
  • 9/5
  • 1 total stop
  • 28h 25m total
  • London to Washington
Search Deals

Find flight deals from Heathrow to Washington

Cheapest flights from Heathrow to Washington
Explore the most affordable flight options available from Heathrow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 December 2024.

Mon 30/1211:40LHR - SEA
1 stop18h 11mVirgin Atlantic
Mon 13/122:55SEA - LHR
1 stop27h 35mVirgin Atlantic
Deal found 29/12£604
Mon 30/1220:05LHR - SEA
2 stops35h 30mDelta
Mon 13/117:45SEA - LHR
Nonstop9h 25mDelta
Deal found 30/12£680
Mon 30/1215:50LHR - SEA
2 stops57h 07mAir France
Mon 13/117:45SEA - LHR
Nonstop9h 25mAir France
Deal found 30/12£719
Mon 30/1214:30LHR - SEA
1 stop31h 42mAmerican Airlines
Mon 13/107:11SEA - LHR
2 stops19h 04mAmerican Airlines
Deal found 30/12£773
Sun 29/1220:25LHR - SEA
1 stop23h 27mKLM
Mon 13/109:25SEA - LHR
1 stop13h 40mKLM
Deal found 29/12£802
Tue 31/1215:10LHR - SEA
1 stop16h 24mUnited Airlines
Tue 14/111:05SEA - LHR
1 stop16h 10mUnited Airlines
Deal found 28/12£807
Mon 30/1208:05LHR - SEA
2 stops21h 10mSWISS
Mon 13/112:50SEA - LHR
2 stops21h 00mSWISS
Deal found 29/12£810
Sun 29/1207:40LHR - SEA
1 stop13h 40mLufthansa
Mon 13/107:00SEA - LHR
1 stop16h 55mLufthansa
Deal found 29/12£823
Tue 31/1208:45LHR - SEA
2 stops17h 40mMultiple Airlines
Tue 7/110:35SEA - LHR
1 stop15h 35mMultiple Airlines
Deal found 30/12£853
Mon 30/1215:00LHR - SEA
2 stops35h 25mAir Canada
Mon 6/119:05SEA - LHR
2 stops28h 05mAir Canada
Deal found 29/12£859
Mon 30/1211:40LHR - PDX
1 stop16h 07mMultiple Airlines
Mon 6/114:40PDX - LHR
2 stops36h 30mMultiple Airlines
Deal found 29/12£881
Mon 30/1211:15LHR - PDX
1 stop19h 29mFinnair
Tue 7/118:30PDX - LHR
Nonstop9h 40mFinnair
Deal found 29/12£907

Find flights from Heathrow to Washington within your budget

Customise your flight search to find flights from Heathrow to Washington 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 858,174 searches. Data last updated 30 December 2024.

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Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 21/3

07:40-14:20

1 stop13h 40m

Seattle/Tacoma Intl

Sat 29/3

10:35-12:20

1 stop18h 45m

£471

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 27/1

06:30-23:31

2 stops25h 01m

Seattle/Tacoma Intl

Mon 10/2

10:33-12:10

2 stops17h 37m

£471

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 19/1

13:05-15:05

Nonstop10h 00m

Seattle/Tacoma Intl

Mon 5/5

17:35-11:25

Nonstop9h 50m

£473

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 21/2

09:25-19:05

1 stop17h 40m

Seattle/Tacoma Intl

Mon 10/3

19:50-12:15

Nonstop9h 25m

£476

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 17/1

15:50-18:20

Nonstop10h 30m

Seattle/Tacoma Intl

Sun 26/1

17:45-11:10

Nonstop9h 25m

£477

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 18/1

09:10-20:47

1 stop19h 37m

Seattle/Tacoma Intl

Wed 7/5

19:55-13:30

Nonstop9h 35m

£478

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 8/3

06:30-18:25

2 stops19h 55m

Seattle/Tacoma Intl

Fri 14/3

05:45-07:10

2 stops18h 25m

£481

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 25/4

09:30-18:28

2 stops16h 58m

Seattle/Tacoma Intl

Wed 30/4

05:45-06:30

2 stops16h 45m

£483

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 15/5

10:20-16:00

1 stop13h 40m

Seattle/Tacoma Intl

Tue 1/7

13:30-06:50

Nonstop9h 20m

£490

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 16/4

10:50-16:59

1 stop14h 09m

Seattle/Tacoma Intl

Wed 23/4

15:05-13:20

1 stop14h 15m

£490

Flights are sorted by cheapest return flights first.

Deals found on 30/12

Showing 1-10 of 60 results
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Best time to book a flight from Heathrow to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Heathrow 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 Heathrow to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of £622). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of £946). 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 LHR to WA?

Find hourly flight availability from Heathrow to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 December 2024.

When flying from London Heathrow Airport to State of Washington, 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 London Heathrow Airport to State of Washington

Explore weekly flight availability from Heathrow to Washington. 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 30 December 2024.

The most flights from LHR to USWA are scheduled on a Tuesday (17 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated 30 December 2024.
See what other customers who have flown with Finnair, KLM and American Airlines from London to Washington have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,540 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,540 reviews
Delta
8.0
Very Good
8,540 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very Good
8,540 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.7
Good
1,282 reviews
Delta
8.0
Very Good
8,540 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.6
Good
788 reviews
Delta
8.0
Very Good
8,540 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
664 reviews
Delta
8.0
Very Good
8,540 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Washington. 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 London Heathrow Airport to State of Washington one-way?

    One-way options have recently been found by users for as low as £416 on Icelandair. Other airlines that offer cheap prices include WestJet from £420 and Aer Lingus from £425 one-way.

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

    When deciding which route to take from London Heathrow Airport to State of Washington consider London Heathrow - Seattle/Tacoma Intl, London Heathrow - Portland or London Heathrow - Spokane as they are the most popular.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to State of Washington are Air France (73%), Delta (73%) and Virgin Atlantic (73%).

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

    Looking for the cheapest flight from London Heathrow Airport to State of Washington? While on average our users pay £2,164, our data indicates the cheapest price to be £462. The most popular route (London Heathrow - Seattle/Tacoma Intl), is priced around £358.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Washington 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 London Heathrow Airport to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of £622). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of £946). 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 Heathrow to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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London City to San Francisco flights
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Top 10 airlines flying from Heathrow to Washington

Discover the top 10 airlines that operate flights from Heathrow to Washington. 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 858,174 searches. Data last updated 30 December 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£315Average£883FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£417Average£546FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£430Average£615FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£437Average£670FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£439Average£581FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Aer LingusCheapest£440Average£691FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£448Average£1,082FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£468Average£619FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£470Average£834FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£472Average£629FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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

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Can Cheapflights find flights from Heathrow to Washington with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Washington flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from Heathrow to Washington on Cheapflights with our Price Alert feature and get notified when better prices are available.

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