Cheap flights from Washington (WA) to London (LON)

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How to find the cheapest flight from
Washington to London (LON)

All the information you need to plan the best null to LON flight in 2021: compare Washington to London flight prices with the expected peak season, weather and rainfall in London.
How far in advance should I book a flight from Washington to London?

Find a great deal and save up to 44% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington to London within the next two weeks, with the cheapest ticket starting at $910.

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

October is one of the best times of the year to fly to London from Washington. Prices for October average $714 per person but you can even find prices for as low as $445. The most expensive prices can be found in the month of July. Opting for a October flight can save you 31% on your journey compared to booking in October

Cheap flights from Washington to London in May, June 2021

The best prices found for Washington to LON flights for May, June
9 Jun - 17 Jun
$617pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
9 Jun - 17 Jun
$617pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
9 Jun - 19 Jun
$673pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Washington to London 2021 flight deals

Cheap flights to London from Washington found for this year
10 Sep - 18 Sep
$603pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
10 Sep - 25 Sep
$609pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
3 Sep - 10 Sep
$610pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Non-stop flights to London from Washington

Save time with Washington to London direct flight deals
14 Sep - 23 Sep
$804pp
SEA
Seattle/Tacoma Intl
Iberia
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
SEA
Seattle/Tacoma Intl
5 Oct - 26 Oct
$829pp
SEA
Seattle/Tacoma Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
SEA
Seattle/Tacoma Intl
2 Nov - 9 Nov
$833pp
SEA
Seattle/Tacoma Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Washington to London

Late deals on round-trip flights to London from Washington, departing today and this week
19 May - 9 Jun
$952pp
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
KLM
Non-Stop
SEA
Seattle/Tacoma Intl
19 May - 9 Jun
$1,036pp
SEA
Seattle/Tacoma Intl
SAS
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
SAS
   
2 STOPS
SEA
Seattle/Tacoma Intl
19 May - 9 Jun
$1,080pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to London from Washington

The cheapest one-way flights from Washington to London
10:15 am - 5:45 am
Turkish Airlines
2 Stops
35h 30m
SEA - LGW
Turkish Airlines
$367
Fareboom
4:55 am - 4:10 pm
Multiple Airlines
3 Stops
51h 15m
SEA - LTN
Multiple Airlines
$373
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Washington</span> to <span class="emphasized">London</span> flights.

Flight FAQs

From Washington to London

Are flight prices decreasing from Washington to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Washington and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Washington to London have flexible cancellations due to COVID-19?

Some of our airline partners flying from Washington to London have new flexible policies in place due to COVID-19. Delta, Virgin Atlantic, and British Airways are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

Can I find flights from Washington to London for under $700 on Cheapflights?

Yes, there are multiple flights from Washington to London for under $700. The cheapest flight booked recently is on Multiple Airlines for just $603, but on average you can expect to pay $628.

Are there nonstop flights from Washington to London for under $900 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington to London under $900. A good price for a nonstop flight from Washington to London is less than $884.

Are there last-minute flights available from Washington to London for under $1,000?

There are currently 20+ open flights from Washington to London within the next 7 days for less than $1,000.

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

Major Airline, American Airlines and Air Canada are the most popular airlines when flying from Washington to London.

What are the most popular routes from Washington to London?

The most popular flight routes from Washington to London are Seattle/Tacoma Intl - London Heathrow, Seattle/Tacoma Intl - London Gatwick and Seattle/Tacoma Intl - London City.

What are the cheapest Flights from Washington to London?

On average you can expect to pay $1,917 for a flight from Washington to London. The cheapest flight overall is $233 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at $620.

What are the most reliable airlines from Washington to London?

No one likes to see their flight delayed. When booking a flight from Washington to London consider choosing Alaska Airlines (100%), British Airways (96%) or American Airlines (91%) as they are the most reliable in getting you off to your destination on time.

How long is the flight from Washington to London?

Virgin Atlantic, Delta, and Icelandair can get you from Washington to London in just under 11h 05m. Your travel time can differ by up to 1h. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What is the cheapest airline to fly from Washington to London round-trip?

Cheapflights users have booked flights from Washington to London round-trip from $646.

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

To fly one-way, consider booking your trip with Turkish Airlines, which is currently one of the cheapest options available, starting at $363. Turkish Airlines is not the only option available. At the moment, WestJet is another option, for $364.

Departure points for flights from Washington to London

Select to see more specific information for flights to London from all departure points in Washington.

Destination information for London

Things to know before you go - useful duration and weather info for your trip from Washington to London.
Today's exchange rate
$1 = £0.71
Average temperature for May in London
64.4 °F
Avg rainfall for May in London
2.0 ″

Airports servicing

Seattle King County/Boeing (BFI)
Bellingham (BLI)
Deer Harbor (DHB)
Wenatchee (EAT)
Eastsound Orcas Island (ESD)
Friday Harbor SPB (FBS)

Airports servicing London

Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Top 10 airlines flying from Washington to London

The chart below displays the airlines Cheapflights users traveling from Washington to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Air France
$414 $583 No cancel fee 77%
KLM
$415 $609 No cancel fee 75%
Air Canada
$373 $633 No cancel fee 67%
Norwegian Air UK
$377 $635 No cancel fee N/A
Norwegian
$403 $697 No cancel fee 74%
Lufthansa
$378 $738 No cancel fee 76%
Finnair
$335 $853 No cancel fee 76%
American Airlines
$415 $859 No cancel fee 71%
Austrian Airlines
$438 $877 No cancel fee 78%
United Airlines
$407 $953 No cancel fee 69%
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