Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Washington to London
The cheapest flights right now
Washington – London
Outbound – Nov 14, 2026
1 stop
12h 15m LIS
Return – Nov 19, 2026
1 stop
14h 15m LIS
$614
yesterday
Washington – London
Outbound – Nov 16, 2026
direct
7h 10m Return – Nov 24, 2026
direct
8h 15m $913
2 days ago
Washington – London
Outbound – Nov 16, 2026
direct
7h 10m Return – Nov 24, 2026
direct
8h 25m $905
2 days ago
Washington – London
Outbound – Nov 16, 2026
direct
7h 10m Return – Nov 24, 2026
direct
8h 25m $904
yesterday
* 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
$452
Average price of a round trip
$644
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
7h32
A flight from Washington to London takes on average 7h32.
Best time
April
According to user searches, the ideal month to go to London is April.
Tips for finding a cheap flight from Washington to London
Check out our tips for booking your flight to London (United Kingdom) from Washington (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is April, with an average flight ticket price of $316 (calculation over the last two years). The most touristic season corresponds to the months of September, October and November.
For the cheapest flights, it is advisable to buy your ticket at least 64 days before the departure date.
The airline offering the cheapest flight tickets is Iberia. A ticket from the airline Iberia to London costs on average $486.
The airlines that offer the most flights are United Airlines and United Airlines.
Price of flight tickets from Washington to London
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $452 to $1065
- The average price of a flight ticket is about $644
- Prices are lowest for stays in the month of April
- The month in which booking a ticket is cheaper is: December
info departure city :
Washington, USA
airports :
Ronald Reagan Washington National Airport (DCA)
Dulles International Airport (IAD)
College Park Airport (CGS)
local time :
Washington is a city in the country USA, the time zone is [[timezone]]. In Washington, it is currently {fromLocalTime}, the temperature is on average 20°C, with a minimum of 16°C and a maximum of 28°C.
The city of Washington (WAS) has 3 airport(s): Ronald Reagan Washington, Dulles and College Park
destination info :
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 in the country United Kingdom, the time zone is [[timezone]]. In London, it is currently {toLocalTime}, the temperature is on average 11°C, with a minimum of 9°C and a maximum of 14°C.
The city of London (LON) has 5 airport(s): London City, London Gatwick, London Heathrow, London Luton and London-Stansted
Useful info about London
What is the least touristic period to go to London?
If you want to visit London during the least touristic period, choose the month of April.
What is the most popular time to travel to London?
In London, 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 Washington to London?
According to our data, it is recommended to book your flight 64 days before your departure. If you book your flight ticket 10 weeks before your departure, you may find a price below average. You can also choose morning flights that are 9% cheaper than afternoon and evening flights. The cheapest day to book a flight from Washington to London is Tuesday.
What are the arrival and destination airports when traveling between Washington and London?
When you leave, you can leave from Ronald Reagan Washington or Dulles, and you will arrive at London City, London Gatwick, London Heathrow, London Luton or London-Stansted.
How to reach Washington airport from the city centre?
The airport Ronald Reagan Washington is located 4 km, Dulles is located 42 km or College Park is located 14 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 Washington to London?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Washington and London?
In summer, the average temperature is 18°C in London and 25°C in Washington. The average rainfall in summer is 63 mm in London and 133 mm in Washington. 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.
