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

Home Europe United Kingdom England London Cheap flights from Washington to London

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

All the information you need to plan the best WAS to LON flight in 2021: compare Washington to London flight prices with the expected peak season, weather and rainfall in London.
WAS - LON
Price
$628 - $886
LON
Temperature
48.2 - 73.4 °F
LON
Precipitation
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

$152

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?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Travelers have found it’s best to book a flight 48 days in advance to save up to 49% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 48 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington to London 1-2 weeks in advance for as low as $825, or $1,055 for flights within the next 24 hours.

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 $708 for the month, but tickets can be as low as $565. Due to multiple factors, prepare for potentially higher prices in June.

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

A simple way to save on the total cost of your ticket is to fly from Washington to London in the evening. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight in the morning.

Cheap flights from Washington to London in September, October 2021

The best prices found for WAS to LON flights for September, October
21 Oct - 26 Oct
$353pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
21 Oct - 30 Oct
$354pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
12 Oct - 26 Oct
$355pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl

Washington to London 2021 flight deals

Cheap flights to London from Washington found for this year
19 Nov - 24 Nov
$349pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
21 Oct - 26 Oct
$353pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl
19 Nov - 26 Nov
$354pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAD
Washington Dulles Intl

Non-stop flights to London from Washington

Save time with Washington to London direct flight deals
7 Jan - 10 Jan
$418pp
BWI
Baltimore/Washington
Iberia
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
BWI
Baltimore/Washington
7 Oct - 17 Oct
$430pp
IAD
Washington Dulles Intl
Iberia
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
IAD
Washington Dulles Intl
14 Oct - 26 Oct
$431pp
IAD
Washington Dulles Intl
American Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
American Airlines
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
27 Sep - 13 Oct
$492pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl
27 Sep - 13 Oct
$493pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl
27 Sep - 7 Oct
$495pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl

One-way flights to London from Washington

The cheapest one-way flights from Washington to London
5:20 pm - 12:30 pm
TAP AIR PORTUGAL
1 Stop
14h 10m
IAD - LHR
TAP AIR PORTUGAL
$152
mytrip.com
1:30 pm - 11:35 am
TAP AIR PORTUGAL
1 Stop
17h 05m
IAD - LHR
TAP AIR PORTUGAL
$155
mytrip.com
7:20 pm - 2:55 pm
TAP AIR PORTUGAL
1 Stop
15h 35m
IAD - LHR
TAP AIR PORTUGAL
$156
mytrip.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

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.

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.

Can I find flights from Washington to London for under $400 on Cheapflights?

Yes, there are multiple flights from Washington to London for under $400. The cheapest flight booked recently is on Multiple Airlines for just $349, but on average you can expect to pay $363.

Are there nonstop flights from Washington to London for under $500 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington to London under $500. A good price for a nonstop flight from Washington to London is less than $507.

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.

What days are nonstop flights available from Washington to London?

Days when nonstop flights are available for this flight are: Saturday.

How many flights depart from Washington to London on average per day?

On average, you can expect to see 4 flights from Washington to London a day.
Evening (6pm - Midnight) - 100% of flight departures

How long is the flight from Washington to London?

There are many flights that can get you from Washington to London in 10h 50m. Fly via TAP AIR PORTUGAL to get the fastest option. Airlines will cover a distance of 3687 mi.

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 $381. You may be able to fly from Washington to London for 46% less than the average price by searching for this airline.

Related searches

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Other flights from Washington

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Other flights to London

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COVID Restrictions

View COVID Travel Restrictions for London, England

Do I need a COVID test to fly to London from Washington?

Information is based on travel restrictions from Washington to London

Most visitors from Washington need to provide a negative COVID-19 test result and/or quarantine to enter London.

COVID-19 testing requirements
Visitors from Washington must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London.

Quarantine requirements
Visitors from Washington are not required to quarantine after entering London.

Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.

Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.

COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.


Do I need a test to fly back to Washington from London?

Returning to Washington from London

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Washington.

Quarantine requirements
Visitors from London are not required to quarantine after entering Washington.

Hide COVID Travel Restrictions for London, England

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 = £0.73
Flight duration from Washington to London
7h 40m
Average temperature for September in London
68.0 °F
Avg rainfall for September in London
1.9 ″

Airports servicing Washington

Dulles Intl (IAD)
Reagan-National (DCA)

Airports servicing London

Heathrow (LHR)
Gatwick (LGW)
Stansted (STN)
London City (LCY)
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
SAS 		$355 $652 No cancel fee 77%
Virgin Atlantic 		$367 $673 No cancel fee 72%
Icelandair 		$392 $696 No cancel fee 76%
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.
Delta 		$415 $827 No cancel fee N/A
United Airlines 		$437 $790 No cancel fee 69%
American Airlines 		$469 $837 No cancel fee 71%
Air Canada 		$471 $1,143 No cancel fee 67%
SWISS 		$473 $615 No cancel fee 79%
Lufthansa 		$473 $699 No cancel fee 76%

Popular flight searches

Check out other popular destinations found by fellow travelers in 2021.

Hourly flight availability from Washington to London

See what time of day planes typically take off from Washington towards London.
Afternoon Noon to 6 PM 52% of WAS to LON departures
Evening 6 PM to midnight 47% of WAS to LON departures
Early morning Midnight to 6 AM 1% of WAS to LON departures
Morning 6 AM to noon 0% of WAS to LON departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Washington to London
See how many times per day planes take to the skies headed from Washington to London.
Sunday
22 daily flights
Monday
22 daily flights
Tuesday
22 daily flights
Wednesday
22 daily flights
Thursday
22 daily flights
Friday
22 daily flights
Saturday
22 daily flights
Home Europe United Kingdom England London Cheap flights from Washington to London