Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from London to Washington
The best flight deals right now
London – Washington
Outbound – 30 Aug 2026
direct
8h 20m Return – 16 Sept 2026
direct
7h 20m £468
2 days ago
London – Washington
Outbound – 30 Aug 2026
direct
8h 15m Return – 16 Sept 2026
direct
7h 20m £467
yesterday
London – Washington
Outbound – 30 Aug 2026
direct
8h 15m Return – 16 Sept 2026
direct
7h 20m £471
yesterday
* Prices are in GBP per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that ticket availability and prices are subject to change and should not be considered as the final price quoted.
Cheapest flight
£466
Average price of a round trip
£522
Average price recorded over the last 3 months for a round trip.
Flight duration
8h30
A flight from London to Washington takes on average 8h30.
Best time
August
According to user searches, the ideal month to go to Washington is August.
What is the cheapest month for this flight?
* The prices shown are an average per month of the prices found by Liligo users during the last 30 days.
Tips for finding cheap flights from London to Washington
Check out our tips for booking your flight to Washington (USA) from London (United Kingdom) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is April, with an average ticket price of £314 (calculation over the last two years). The most touristic season corresponds to the months of July, August and April.
For an attractive price, it is advisable to buy your flight tickets at least 28 days before the departure date.
The airline offering the cheapest tickets is Ryanair. A ticket from the company Ryanair to Washington costs on average £520.
The airlines that offer the most flights are .
Price of flight tickets from London to Washington
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from £466 to £930
- The average price of a flight ticket is about £522
- Prices are lowest for stays in the month of April
- The month in which booking a ticket is cheaper is: May
info departure city :
London, United Kingdom
airports :
London City Airport (LCY)
London Gatwick Airport (LGW)
London Heathrow Airport (LHR)
London Luton Airport (LTN)
London-Stansted Airport (STN)
local time :
London is a city in the country United Kingdom, the time zone is [[timezone]]. In London, it is currently {fromLocalTime}, the temperature is on average 26°C, with a minimum of 17°C and a maximum of 36°C.
The city of London (LON) has 5 airport(s): London City, London Gatwick, London Heathrow, London Luton and London-Stansted
destination info :
Washington, USA
airports :
Ronald Reagan Washington National Airport (DCA)
Dulles International Airport (IAD)
College Park Airport (CGS)
local time :
Washington is in the country USA, the time zone is [[timezone]]. In Washington, it is currently {toLocalTime}, the temperature is on average 27°C, with a minimum of 20°C and a maximum of 37°C.
The city of Washington (WAS) has 3 airport(s): Ronald Reagan Washington, Dulles and College Park
Useful info about Washington
What is the least touristic period to go to Washington?
If you want to visit Washington during the least touristic period, choose the month of August.
What is the most popular time to travel to Washington?
In Washington, the most touristic month is July. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight London - Washington?
According to our data, it is recommended to book your flight 28 days before your departure. If you book your flight ticket 5 weeks before your departure, you may find a price below average. The cheapest day to book a flight London - Washington is Saturday.
What are the arrival and destination airports when travelling between London and Washington?
When you leave, you can leave from London Gatwick, London Heathrow, London Luton or London-Stansted, and you will arrive at Baltimore/Washington Thurgood Marshall or Dulles.
How to reach London airport from the city centre?
The airport London City is located 16 km, London Gatwick is located 38 km, London Heathrow is located 35 km, London Luton is located 45 km or London-Stansted is located 49 km from the city centre. You can access it by using public transport, taking a taxi, or renting a car..
Are there other means of transport to go from London to Washington?
Flights are the only means of transport listed on Liligo for this journey.
Are there big differences in weather between London and Washington?
In summer, the average temperature is 25°C in Washington and 18°C in London. The average rainfall in summer is 132 mm in Washington and 64 mm in London.In summer, it is warmer in Washington and it rains less in London. In winter, it is colder in London and it rains more in Washington.