Cheap flights from London to Washington

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The best prices from London to Washington are usually found in February or January, booked 60 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

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

LON - WAS
Price
£445 - £965
WAS
Temperature
9 - 32 °C
WAS
Rainfall
60 - 107 mm
Popular in July High demand for flights, 30% potential price rise
Cheapest in February Best time to find cheap flights, 34% potential price drop
Round-trip from £445 From London to Washington
One-way from £238 One-way flight from London to Washington
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 return from London to Washington?

Flights from London to Washington are generally found to be more expensive on Saturday. 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 Washington.

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

Users have found that booking a flight from London to Washington at least 61 days early can save you up to 20% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from London to Washington for as little as £493 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £517 for flights departing within the next 3 days.

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

The best pricing can be found in the month of February. Prices to Washington from London average £534. You can even find prices in February for less than £534, as users have found deals to Washington from as low as £303. The month of July appears to be one of the more expensive times to travel to Washington from London. Flying in the targeted month can save you up to 43%.

Cheap flights from London to Washington in July, August 2020

The best prices found for LON to WAS flights in July, August
22 Jul - 2 Aug
£471pp
STN
London Stansted
Multiple airlines
   
2 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
22 Jul - 5 Sep
£476pp
LGW
London Gatwick
Multiple airlines
   
2 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
23 Jul - 3 Sep
£480pp
STN
London Stansted
Multiple airlines
   
2 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted

London to Washington 2020 flight deals

Cheap flights to Washington from London found for this year
24 Nov - 8 Dec
£351pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
24 Sep - 8 Oct
£353pp
STN
London Stansted
Multiple airlines
   
2 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
18 Sep - 30 Sep
£353pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow

Direct flights to Washington from London

Save time with London to Washington direct flight deals
10 Sep - 25 Sep
£527pp
LHR
London Heathrow
Lufthansa
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Lufthansa
Direct
LHR
London Heathrow
22 Aug - 20 Nov
£538pp
LHR
London Heathrow
Multiple airlines
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Lufthansa
Direct
LHR
London Heathrow
10 Sep - 25 Sep
£543pp
LHR
London Heathrow
Austrian Airlines
Direct
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Austrian Airlines
Direct
LHR
London Heathrow

Last-minute flights from London to Washington

Late deals on return flights to Washington from London, departing today and this week
26 Jun - 29 Jun
£700pp
LHR
London Heathrow
Finnair
   
2 STOPS
DCA
Washington Reagan-National
DCA
Washington Reagan-National
Finnair
 
1 STOP
LHR
London Heathrow
23 Jun - 30 Jun
£712pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
26 Jun - 30 Jun
£749pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

One-way flights to Washington from London

The cheapest one-way flights from London to Washington
14:45 - 18:40
TAP AIR PORTUGAL
1 stop
32h 55m
LHR - IAD
TAP AIR PORTUGAL
02:00 - 16:10
TAP AIR PORTUGAL
1 stop
19h 10m
LHR - IAD
TAP AIR PORTUGAL
£196
mytrip.com
07:20 - 16:10
TAP AIR PORTUGAL
1 stop
13h 50m
LHR - IAD
TAP AIR PORTUGAL
£198
mytrip.com

Related info for your journey

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

Flight FAQs

From London to Washington

Are flight prices decreasing from London to Washington 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 London and Washington 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 London to Washington for under £400 on Cheapflights?

Yes, there are multiple flights from London to Washington for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £351, but on average you can expect to pay £363.

Are there direct flights from London to Washington for under £600 on Cheapflights?

Cheapflights has 20 direct flights from London to Washington under £600. A good price for a direct flight from London to Washington is less than £566.

Are there last-minute flights available from London to Washington for under £700?

There are currently 20+ open flights from London to Washington within the next 7 days for less than £700.

How popular is this flight route?

The London to Washington flight path was viewed by 145 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What is the cheapest airline for this route?

The cheapest airline for this route is United Air Lines Inc.. When flying this airline from London to Washington, you can expect to find 81 flights per day available for this route, on average.

Is London weather warmer or cooler than Washington?

Our data indicates that the weather will be 32 °C on average in the month of July. The temperature in Washington is typically hotter than in London. 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.

Destination information for Washington

Things to know before you go. Useful info for your trip from London to Washington
Today's exchange rate
£1 = $1.27
Average temperature for July in Washington
32.0 °C
Avg rainfall for July in Washington
101.0 mm

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)

Airports servicing Washington

Reagan National (DCA)

Hourly flight availability from London to Washington

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