Cheap flights from London to Washington, D.C.
The best prices from London to Washington, D.C. are usually found in February or March, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Sunday
How to find the cheapest flight from
London (LON) to Washington, D.C. (WAS)
All the information you need to plan the best LON to WAS flight in 2022: compare London to Washington, D.C. flight prices with the expected peak season, weather and rainfall in Washington, D.C..
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LON - WAS Price
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£680 - £885
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WAS Temperature
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2 - 27 °C
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WAS Rainfall
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66 - 102 mm
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Popular in December High demand for flights, 14% potential price rise |
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Cheapest in February Best time to find cheap flights, 11% potential price drop |
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Round-trip from £575 From London (LON) to Washington, D.C. (WAS) |
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One-way from £182 One-way flight from London (LON) to Washington, D.C. (WAS) |
What is the cheapest day to fly round-trip from London to Washington, D.C.?
Users have found that flying from London to Washington, D.C. on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.
What is the cheapest month to fly from London to Washington, D.C.?
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Washington, D.C.. Flights to Washington, D.C. from London in February are about £643 on average during February, but can be found for as low as £444.
How far in advance should I book a flight from London to Washington, D.C.?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 24% on flights from London to Washington, D.C. compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £714. For sooner than that we have options available in the next 3 days from £804.
When is the cheapest time to fly from London to Washington, D.C. (LON - WAS)?
A simple way to save on the total cost of your ticket is to fly from London to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the afternoon.
Cheap flights from London to Washington, D.C. in July, August 2022
The best prices found for LON to WAS flights in July, August
London to Washington, D.C. 2022 flight deals
Cheap flights to Washington, D.C. from London found for this year
Cheap Aer Lingus flights from London to Washington, D.C.
If you’re travelling from London to Washington, D.C., one of the more common airlines travelling that route is Aer Lingus. Flights from Aer Lingus travelling this route typically cost £895.66 RT. This price is typically 49% cheaper than other airlines that offer London to Washington, D.C. flights. When booking this route, the cheapest RT price found was £690. The most popular departure airport in London when flying to Washington, D.C. is London Heathrow Airport. The most popular airport to fly into when visiting Washington, D.C. is Washington, D.C. Dulles Intl Airport. When flying from London to Washington, D.C., Aer Lingus flights are 8% more popular than any other airline flying that same route.
Cheap Icelandair flights from London to Washington, D.C.
Icelandair is one of the most popular airlines used for those travelling from London to Washington, D.C.. Flights from Icelandair travelling this route typically cost £1,062.09 RT. This price is typically 39% more expensive than other airlines that offer London to Washington, D.C. flights. When booking this route, the cheapest RT price found was £828. The most popular departure airport in London when flying to Washington, D.C. is London Heathrow Airport. The most popular airport to fly into when visiting Washington, D.C. is Washington, D.C. Dulles Intl Airport. When flying from London to Washington, D.C., Icelandair flights are 7% more popular than any other airline flying that same route.
Direct flights to Washington, D.C. from London
Save time with London to Washington, D.C. direct flight deals
Last-minute flights from London to Washington, D.C.
Late deals on return flights to Washington, D.C. from London, departing today and this week
One-way flights to Washington, D.C. from London
The cheapest one-way flights from London to Washington, D.C.
Related info for your journey
Useful info, stats and facts about <span class="emphasized">London</span> to <span class="emphasized">Washington, D.C.</span> flights.
COVID Restrictions
View COVID Travel Restrictions for Washington, D.C., DCTop 10 airlines flying from London to Washington, D.C.
The chart below displays the airlines Cheapflights users travelling from London to Washington, D.C. choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2022.
Hourly flight availability from London to Washington, D.C.
See what time of day planes typically take off from London towards Washington, D.C..
| Morning 6 AM to midday | 71% of LON to US-WAS departures |
| Afternoon Midday to 6 PM | 28% of LON to US-WAS departures |
| Early morning Midnight to 6 AM | 1% of LON to US-WAS departures |
| Evening 6 PM to midnight | 0% of LON to US-WAS departures |