Washington

$506+ Cheap flights from London (LON) to Washington

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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SEA
janv. 26 — févr. 21
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Cheap flight deals from London to Washington

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 janvier 21, 2025.

Round-trip from

$531
(lastminute.com)

One-way from

$506
(oojo)

Good round-trip deal

$632 or less

Good one-way deal

$599 or less
From London (LON) to Washington
One-way flight from London (LON) to Washington
Price to beat on a round-trip flight from London (LON) to Washington.
Price to beat on a one-way flight from London (LON) to Washington.

Find flight deals from London to Washington

Cheapest flights from London to Washington
Explore the most affordable flight options available from London to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 21, 2025.

This lastminute.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/31:15 pmLHR - SEA
Nonstop10h 00mVirgin Atlantic
lun. 3/171:50 pmSEA - LHR
1 stop14h 20mVirgin Atlantic
Deal found 1/21$531
This TravelTrolley deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelTrolley is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/119:25 amLHR - SEA
Nonstop9h 55mBritish Airways
lun. 3/247:50 pmSEA - LHR
Nonstop9h 25mBritish Airways
Deal found 1/21$533
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/41:15 pmLHR - SEA
Nonstop10h 00mDelta
lun. 2/105:45 pmSEA - LHR
Nonstop9h 25mDelta
Deal found 1/20$534
This Icelandair deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/213:40 pmLGW - SEA
1 stop13h 00mIcelandair
ven. 5/97:00 pmSEA - LGW
1 stop11h 40mIcelandair
Deal found 1/20$535
This Air Canada deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/136:30 amLHR - SEA
2 stops19h 57mMultiple Airlines
jeu. 3/136:05 amSEA - LHR
1 stop19h 25mMultiple Airlines
Deal found 1/20$535
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 3/512:30 pmLGW - SEA
2 stops30h 36mAmerican Airlines
mar. 3/2511:59 pmSEA - LGW
2 stops24h 31mAmerican Airlines
Deal found 1/21$537
This SWISS deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/49:15 amLCY - SEA
2 stops20h 05mSWISS
mar. 2/1111:05 amSEA - LCY
2 stops17h 45mSWISS
Deal found 1/20$537
This Gotogate deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 2/77:40 amLHR - SEA
1 stop13h 40mLufthansa
jeu. 2/1310:35 amSEA - LHR
2 stops14h 45mLufthansa
Deal found 1/20$537
This TravelUp deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/612:40 pmLHR - SEA
Nonstop10h 00mKLM
lun. 2/105:45 pmSEA - LHR
Nonstop9h 25mKLM
Deal found 1/19$540
This SWISS deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 2/76:45 pmLGW - SEA
2 stops36h 24mSWISS
mar. 2/113:25 pmSEA - LGW
2 stops18h 25mSWISS
Deal found 1/21$543
This SWISS deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/66:00 amLHR - SEA
2 stops24h 53mSWISS
lun. 2/103:25 pmSEA - LHR
2 stops19h 50mSWISS
Deal found 1/19$543
This TravelUp deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/59:25 amLCY - SEA
2 stops21h 28mMultiple Airlines
mer. 2/128:00 amSEA - LCY
2 stops17h 25mMultiple Airlines
Deal found 1/21$547

Find flights from London to Washington within your budget

Customize your flight search to find flights from London 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 2,558,603 searches. Data last updated janvier 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

lun. 3/3

1:15 pm-3:15 pm

Nonstop10h 00m

Seattle/Tacoma Intl

lun. 3/17

1:50 pm-11:10 am

1 stop14h 20m

$531

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

mar. 3/11

9:25 am-12:20 pm

Nonstop9h 55m

Seattle/Tacoma Intl

lun. 3/24

7:50 pm-12:15 pm

Nonstop9h 25m

$533

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

mar. 2/4

1:15 pm-3:15 pm

Nonstop10h 00m

Seattle/Tacoma Intl

lun. 2/10

5:45 pm-11:10 am

Nonstop9h 25m

$534

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

lun. 4/21

3:40 pm-8:40 pm

1 stop13h 00m

Seattle/Tacoma Intl

ven. 5/9

7:00 pm-2:40 pm

1 stop11h 40m

$535

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

jeu. 2/13

6:30 am-6:27 pm

2 stops19h 57m

Seattle/Tacoma Intl

jeu. 3/13

6:05 am-8:30 am

1 stop19h 25m

$535

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

mer. 3/5

12:30 pm-11:06 am

2 stops30h 36m

Seattle/Tacoma Intl

mar. 3/25

11:59 pm-7:30 am

2 stops24h 31m

$537

LondonSeattle

LCY - SEA

LCYSEA

London City

mar. 2/4

9:15 am-9:20 pm

2 stops20h 05m

Seattle/Tacoma Intl

mar. 2/11

11:05 am-12:50 pm

2 stops17h 45m

$537

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

ven. 2/7

7:40 am-8:31 pm

2 stops20h 51m

Seattle/Tacoma Intl

mar. 2/11

7:00 am-7:55 am

1 stop16h 55m

$537

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

jeu. 2/6

12:40 pm-2:40 pm

Nonstop10h 00m

Seattle/Tacoma Intl

lun. 2/10

5:45 pm-11:10 am

Nonstop9h 25m

$540

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

ven. 2/7

6:45 pm-11:09 pm

2 stops36h 24m

Seattle/Tacoma Intl

mar. 2/11

3:25 pm-5:50 pm

2 stops18h 25m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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

Have a flexible travel schedule? Discover the best time to fly to Washington from London with our price prediction graph.
Estimated round-trip 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 London to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from London to State of Washington (average of $238). Flying from London to State of Washington in July is currently the most expensive (average of $411). 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 LON to WA?

Find hourly flight availability from London 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 janvier 21, 2025.

When flying from London 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 to State of Washington

Explore weekly flight availability from London 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 janvier 21, 2025.

The most flights from LON to USWA are scheduled on a Tuesday (18 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 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 janvier 21, 2025.
See what other customers who have flown with Virgin Atlantic, Delta and British Airways from London to Washington have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

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

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

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

7.8
Good
1,341 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

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

7.6
Good
1,286 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

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

7.6
Good
786 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

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

7.5
Good
1,600 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

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 London 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 to State of Washington one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $506. However, be on the lookout for offers from Aer Lingus and WestJet, as they are both options that can get you from London to State of Washington for a low price.

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

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

    The top 3 most reliable airlines when flying from London to State of Washington are KLM (75%), Air France (75%) and Delta (75%).

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

    Looking for the cheapest flight from London to State of Washington? While on average our users pay $1,411, our data indicates the cheapest price to be $553. The most popular route (London Heathrow - Seattle/Tacoma Intl), is priced around $447.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London to State of Washington (average of $238). Flying from London to State of Washington in July is currently the most expensive (average of $411). 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 London to Washington

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from London to Washington

Discover the top 8 airlines that operate flights from London 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 2,558,603 searches. Data last updated janvier 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$559Average$845FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$608Average$916FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$614Average$1,017FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$621Average$759FlexibilityNo cancel feeOn-time71%
IberiaCheapest$656Average$975FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$671Average$988FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$674Average$844FlexibilityNo cancel feeOn-time75%
DeltaCheapest$675Average$872FlexibilityNo cancel feeOn-timeN/A
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