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

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The best prices from Washington to London are usually found in October or November, booked 49 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

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

WAS - LON
Price
$628 - $886
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches

Popular in

June

High demand for flights, 20% potential price rise

Cheapest in

October

Best time to find cheap flights, 11% potential price drop

Round-trip from

$628

From Washington to London

One-way from

$153

One-way flight from Washington to London

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Washington to London?

Friday flights are generally found to be more expensive for flights from Washington to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

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

To save on the cost of your flight from Washington to London, book at least 61 days before your planned departure. Booking around this time can save you about 44% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $910 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,146.

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

Our data shows that October tends to be the cheapest month to fly to London from Washington. Users have commonly found prices around $714 for the month, but tickets can be as low as $445. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Washington to London (WAS - LON)?

When flying from Washington to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 3% versus a flight at noon.

Cheap flights from Washington to London in January, February 2021

The best prices found for WAS to LON flights for January, February
15 Jan - 28 Jan
$443pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl
22 Jan - 30 Jan
$468pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl
31 Jan - 6 Feb
$480pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl

Washington to London 2021 flight deals

Cheap flights to London from Washington found for this year
15 Apr - 27 Apr
$434pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
1 Jun - 17 Jun
$440pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
15 Apr - 27 Apr
$441pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl

Non-stop flights to London from Washington

Save time with Washington to London direct flight deals
30 Mar - 14 Sep
$612pp
IAD
Washington Dulles Intl
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
IAD
Washington Dulles Intl
15 Apr - 27 Apr
$613pp
IAD
Washington Dulles Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
IAD
Washington Dulles Intl
15 Apr - 27 Apr
$621pp
IAD
Washington Dulles Intl
Lufthansa
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
Non-Stop
IAD
Washington Dulles Intl

Last minute flights from Washington to London

Late deals on round-trip flights to London from Washington, departing today and this week
22 Jan - 30 Jan
$468pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl
24 Jan - 3 Feb
$522pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
22 Jan - 24 Jan
$525pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl

One-way flights to London from Washington

The cheapest one-way flights from Washington to London
2:55 pm - 7:40 am
TAP AIR PORTUGAL
1 Stop
11h 45m
IAD - LHR
TAP AIR PORTUGAL
$153
mytrip.com
2:55 pm - 7:40 am
TAP AIR PORTUGAL
1 Stop
11h 45m
IAD - LHR
TAP AIR PORTUGAL
$156
Gotogate
1:30 pm - 5:45 am
TAP AIR PORTUGAL
1 Stop
11h 15m
IAD - LGW
TAP AIR PORTUGAL
$159
mytrip.com

Related info for your journey

Useful info, stats and facts about Washington to London 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.

What safety measures are being taken by airlines flying from Washington to London to control the spread of COVID-19?

New policies can now be found on Delta to help keep travelers safe while flying. Some of the new policies that have been implemented to accommodate travelers flying from Washington to London are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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. British Airways, United Airlines, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like British Airways with this kind of flexibility.

Can I find flights from Washington to London for under $500 on Cheapflights?

Yes, there are multiple flights from Washington to London for under $500. The cheapest flight booked recently is on Multiple Airlines for just $434, but on average you can expect to pay $451.

Are there nonstop flights from Washington to London for under $700 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington to London under $700. A good price for a nonstop flight from Washington to London is less than $632.

Are there last-minute flights available from Washington to London for under $500?

There are currently 20+ open flights from Washington to London within the next 7 days for less than $500.

Is Washington weather warmer or cooler than London?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in London is typically colder than in Washington. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Washington to London?

Departing from Washington to London will take you 7h 10m. 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?

According to our current data, TAP AIR PORTUGAL ($441), offers the cheapest pricing from Washington to London. You may be able to fly from Washington to London for 37% less than the average price by searching for this airline.

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

The cheapest airline for a one-way flight from Washington to London is TAP AIR PORTUGAL ($153).

Destination information for London

Things to know before you go. Useful info for your trip from Washington to London
Today's exchange rate
$1 = £0.74
Average temperature for January in London
48.2 °F
Avg rainfall for January in London
2.0 ″

Airports servicing Washington

Reagan National (DCA)

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
SWISS
$473 $615 No cancel fee 79%
WOW air
$410 $625 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by WOW air. Please check directly on their website for additional information.

KLM
$481 $632 No cancel fee 75%
SAS
$355 $652 No cancel fee 77%
Air France
$492 $705 No cancel fee 77%
Finnair
$503 $718 No cancel fee 76%
Iberia
$520 $734 No cancel fee 77%
TAP AIR PORTUGAL
$504 $765 No cancel fee N/A
Delta
$415 $827 No cancel fee N/A
Aer Lingus
$531 $871 No cancel fee N/A

Hourly flight availability from Washington to London

Evening 6 PM to midnight 100% of WAS to LON departures
Early morning Midnight to 6 AM 0% of WAS to LON departures
Morning 6 AM to noon 0% of WAS to LON departures
Afternoon Noon to 6 PM 0% of WAS to LON departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Washington to London
Sunday
0 flights
Monday
5 daily flights
Tuesday
5 daily flights
Wednesday
5 daily flights
Thursday
5 daily flights
Friday
5 daily flights
Saturday
5 daily flights
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