Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from London to Washington
The cheapest flights right now
London – Washington
Outbound – Nov 22, 2026
direct
8h 30m Return – Dec 6, 2026
direct
7h 10m $573
today
London – Washington
Outbound – Nov 12, 2026
direct
8h 40m Return – Nov 27, 2026
direct
7h 25m $629
3 days ago
London – Washington
Outbound – Nov 12, 2026
direct
8h 40m Return – Nov 27, 2026
direct
7h 25m $628
3 days ago
London – Washington
Outbound – Nov 12, 2026
direct
8h 40m Return – Nov 27, 2026
direct
7h 25m $623
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$443
Average price of a round trip
$589
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
8h17
A flight from London to Washington takes on average 8h17.
Best time
May
According to user searches, the ideal month to go to Washington is May.
Tips for finding a cheap flight 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 June, with an average flight ticket price of $477 (calculation over the last two years). The most touristic season corresponds to the months of September, March and August.
For the cheapest flights, it is advisable to buy your ticket at least 23 days before the departure date.
The airline offering the cheapest flight tickets is Ryanair. A ticket from the airline Ryanair to Washington costs on average $495.
The airlines that offer the most flights are British Airways, Lufthansa and Austrian Airlines.
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 14°C, with a minimum of 11°C and a maximum of 16°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 19°C, with a minimum of 16°C and a maximum of 23°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 May.
What is the most popular time to travel to Washington?
In Washington, the most popular month is September. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from London to Washington?
According to our data, it is recommended to book your flight 23 days before your departure. If you book your flight ticket 4 weeks before your departure, you may find a price below average. You can also choose morning flights that are 26% cheaper than afternoon and evening flights. The cheapest day to book a flight from London to Washington is Sunday.
What are the arrival and destination airports when traveling between London and Washington?
When you leave, you can leave from London City, London Gatwick, London Heathrow, London Luton or London-Stansted, and you will arrive at Baltimore/Washington Thurgood Marshall, Ronald Reagan Washington 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 transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from London to Washington?
Airplane is the only means of transportation 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 133 mm in Washington and 63 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.
