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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 February or January, booked 60 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

$1100
$910
$720
$535
Price
$535 - $987
Temperature
48 - 73 °F
Rainfall
1 - 3 inches
Most popular in June High demand for flights, 22% potential price rise
Cheapest in February Best time to find cheap flights, 5% potential price drop
Average price $739 Price for this month
Cheapest price $535 From Washington to London

Cheap flights from Washington to London in December 2019

The best prices found for IAD to LGW flights for December
16 Dec - 24 Mar
$609pp
IAD
Washington Dulles Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
IAD
Washington Dulles Intl
31 Dec - 12 Jan
$620pp
BWI
Baltimore/Washington
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
BWI
Baltimore/Washington
15 Dec - 20 Jan
$634pp
IAD
Washington Dulles Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
IAD
Washington Dulles Intl

Washington to London 2020 flight deals

Cheap flights to London from Washington found for this year
28 Feb - 16 Mar
$459pp
IAD
Washington Dulles Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
IAD
Washington Dulles Intl
28 Feb - 16 Mar
$462pp
IAD
Washington Dulles Intl
Icelandair
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Icelandair
 
1 STOP
IAD
Washington Dulles Intl
16 Jan - 29 Jan
$467pp
DCA
Washington Reagan-National
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
   
2 STOPS
DCA
Washington Reagan-National

Last minute flights from Washington to London

Late deals on round-trip flights to London from Washington, departing today and this week
9 Dec - 29 Jan
$636pp
IAD
Washington Dulles Intl
Turkish Airlines
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Turkish Airlines
 
1 STOP
IAD
Washington Dulles Intl
9 Dec - 29 Jan
$647pp
IAD
Washington Dulles Intl
Turkish Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Turkish Airlines
 
1 STOP
IAD
Washington Dulles Intl
12 Dec - 16 Dec
$700pp
BWI
Baltimore/Washington
Iberia
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
   
2 STOPS
BWI
Baltimore/Washington

Alternative routes for Washington to London

Destination information for London

Things to know before you go. Useful info for your trip from Washington to London
Today's exchange rate
$1.00 = £0.77
Flight duration
7h 40m
Average temperature for December in London
48.2 °F
Avg rainfall for December in London
2.1 ″

Airports servicing Washington

Washington Dulles Intl (IAD)

Airports servicing London

Stansted (STN)
City (LCY)
Gatwick (LGW)
Heathrow (LHR)
Luton (LTN)
Weekly flight availability
from Washington to London
Sunday
24 daily flights
Monday
29 daily flights
Tuesday
29 daily flights
Wednesday
29 daily flights
Thursday
24 daily flights
Friday
29 daily flights
Saturday
29 daily flights

Related info for your journey

Useful info, stats and facts about Washington to London flights.

Flight FAQs

From Washington to London

What percent of flights are delayed?

Flights from Washington to London are usually delayed by 39min. so prepare accordingly.

How many passenger seats are available on a flight on this route?

On average, there are a total of 2,157 seats offered from Washington to London per day.

What is the cheapest airline for this route?

The cheapest airline for this route is United Air Lines Inc.. When flying this airline from Washington to London on average you can expect to find 78 flights available for this route daily.

How long does the flight from Washington to London take?

A typical nonstop flight can take about 8 hours, covering about 2,291 miles.

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

Per day, 39 flights depart from Washington to London on average.
Morning (6am - Noon) - 13% of flight departures
Afternoon (Noon - 6pm) - 13% of flight departures
Evening (6pm - Midnight) - 74% of flight departures

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.