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Cheap flights from London to Washington, D.C. from £175

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Washington, D.C. departing on 4/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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Tue 7/5

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Easily compare return flights from London to Washington, D.C.

Below you can see the best fares for your return flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to Washington, D.C. by changing tabs
PLAY
27 Sept
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
29 Sept
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
Multiple Airlines
15 May
LGW06:00London Gatwick
16h 40m
1 stop
IAD17:40Washington, D.C. Dulles Intl
10 Sept
IAD18:50Washington, D.C. Dulles Intl
13h 25m
1 stop
LGW13:15London Gatwick
JetBlue
17 Sept
LGW12:10London Gatwick
12h 35m
1 stop
DCA19:45Washington, D.C. Reagan-National
24 Sept
DCA15:30Washington, D.C. Reagan-National
10h 20m
1 stop
LGW06:50London Gatwick
TAP AIR PORTUGAL
29 Aug
LHR06:00London Heathrow
19h 20m
1 stop
IAD20:20Washington, D.C. Dulles Intl
28 Nov
IAD17:30Washington, D.C. Dulles Intl
14h 10m
1 stop
LHR12:40London Heathrow
Icelandair
26 Jun
LGW13:00London Gatwick
11h 15m
1 stop
IAD19:15Washington, D.C. Dulles Intl
11 Jul
IAD23:15Washington, D.C. Dulles Intl
31h 30m
1 stop
LGW11:45London Gatwick
British Airways
24 Sept
LHR17:25London Heathrow
8h 05m
IAD20:30Washington, D.C. Dulles Intl
3 Oct
IAD22:45Washington, D.C. Dulles Intl
7h 20m
LHR11:05London Heathrow

Find the cheapest one-way flights from London to Washington, D.C.

If you're looking for one-way flights from London to Washington, D.C., view some of our deals below provided by Iberia and PLAY
Multiple Airlines
4 Jun
LGW14:00London Gatwick
15h 16m
1 stop
BWI00:16Baltimore/Washington
PLAY
15 May
STN11:40London Stansted
35h 00m
1 stop
BWI17:40Baltimore/Washington
Multiple Airlines
8 May
LGW06:00London Gatwick
16h 40m
1 stop
IAD17:40Washington, D.C. Dulles Intl

Search last-minute flights to Washington, D.C. from London

Find and compare return flight prices for your last-minute flight from London to Washington, D.C.
PLAY
3 May
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
6 May
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
Multiple Airlines
1 May
LGW06:00London Gatwick
16h 40m
1 stop
IAD17:40Washington, D.C. Dulles Intl
5 May
IAD18:50Washington, D.C. Dulles Intl
32h 20m
2 stops
LGW08:10London Gatwick
Virgin Atlantic
6 May
LHR08:40London Heathrow
11h 55m
1 stop
IAD15:35Washington, D.C. Dulles Intl
13 May
IAD22:15Washington, D.C. Dulles Intl
7h 15m
LHR10:30London Heathrow
American Airlines
1 May
LHR09:15London Heathrow
15h 27m
1 stop
IAD19:42Washington, D.C. Dulles Intl
8 May
IAD05:02Washington, D.C. Dulles Intl
23h 38m
2 stops
LHR09:40London Heathrow
Finnair
6 May
LHR14:10London Heathrow
23h 49m
1 stop
DCA08:59Washington, D.C. Reagan-National
9 May
DCA12:36Washington, D.C. Reagan-National
16h 54m
1 stop
LHR10:30London Heathrow
United Airlines
7 May
LHR06:50London Heathrow
12h 25m
1 stop
IAD14:15Washington, D.C. Dulles Intl
16 May
IAD22:25Washington, D.C. Dulles Intl
7h 15m
LHR10:40London Heathrow

Best airlines flying from London to Washington, D.C.

Compare and see reviews for airlines that fly from London to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Norse Atlantic UKPriceFrom £236Free CancellationRating
6.8
29 reviews
Search Norse Atlantic UK flights
PLAYPriceFrom £265Free CancellationRating
7.2
67 reviews
Search PLAY flights
IcelandairPriceFrom £374Free CancellationRating
7.1
1,348 reviews
Search Icelandair flights
JetBluePriceFrom £382Free CancellationRating
7.6
4,618 reviews
Search JetBlue flights
Virgin AtlanticPriceFrom £385Free CancellationRating
7.7
747 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £391Free CancellationRating
7.4
11,234 reviews
Search United Airlines flights
Air FrancePriceFrom £391Free CancellationRating
7.5
1,809 reviews
Search Air France flights
TAP AIR PORTUGALPriceFrom £394Free CancellationRating
7.1
2,179 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom £404Free CancellationRating
7.3
14,898 reviews
Search American Airlines flights
Aer LingusPriceFrom £410Free CancellationRating
7.2
1,350 reviews
Search Aer Lingus flights
  • Delta Flights From London to Washington, D.C.

    Delta flight deals from London to Washington, D.C. start from £641 round-trip. Over the 7 Delta flights for this route in a normal week, average airfare is usually £837 round-trip - but some users have found much cheaper deals with momondo.

  • KLM Flights From London to Washington, D.C.

    KLM (7.8/10 from 1,628 reviews) operates around 7 flights from London to Washington, D.C. in any given week. The average KLM airfare for this route is around £824, with deals from around £604 rare but found on momondo. Referenced prices are for round-trip London to Washington, D.C. flight searches in the last 72 hours.


Icelandair flights from London to Washington, D.C.

Our best Icelandair deals on London to Washington, D.C. flight tickets
Icelandair
26 Jun
LGW13:00London Gatwick
11h 15m
1 stop
IAD19:15Washington, D.C. Dulles Intl
11 Jul
IAD23:15Washington, D.C. Dulles Intl
31h 30m
1 stop
LGW11:45London Gatwick
Icelandair
25 Jun
LHR21:25London Heathrow
26h 50m
1 stop
IAD19:15Washington, D.C. Dulles Intl
10 Jul
IAD20:30Washington, D.C. Dulles Intl
10h 25m
1 stop
LHR11:55London Heathrow
Icelandair
1 May
LGW13:00London Gatwick
11h 25m
1 stop
BWI19:25Baltimore/Washington
6 May
BWI20:30Baltimore/Washington
10h 15m
1 stop
LGW11:45London Gatwick

Scandinavian Airlines flights from London to Washington, D.C.

Our best Scandinavian Airlines deals on London to Washington, D.C. flight tickets
Scandinavian Airlines
8 May
LHR20:30London Heathrow
23h 55m
1 stop
IAD15:25Washington, D.C. Dulles Intl
3 Jun
IAD17:15Washington, D.C. Dulles Intl
17h 45m
1 stop
LHR16:00London Heathrow
Scandinavian Airlines
1 May
LHR17:00London Heathrow
27h 25m
1 stop
IAD15:25Washington, D.C. Dulles Intl
5 May
IAD17:15Washington, D.C. Dulles Intl
23h 25m
1 stop
LHR21:40London Heathrow

How to get the cheapest flight ticket from London to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from London to Washington, D.C.?

September. The cheapest time of year to fly to Washington, D.C. from London is September. The most expensive is July.

What is the cheapest day to depart London for Washington, D.C.?

Wednesday. The cheapest day of the week is usually Wednesday. The most expensive is usually Sunday.

When is the cheapest time to fly from London to Washington, D.C.?

In the morning. London to Washington, D.C. flights are approximately 14% more expensive in the evening than in the morning

What is the cheapest airline that flies to Washington, D.C. from London?

PLAY. Aer Lingus, Air Canada, and Icelandair are the most popular carriers operating from London to Washington, D.C.

What is the cheapest London to Washington, D.C. flight route?

London Stansted - Baltimore/Washington. Fly from London Stansted to Baltimore/Washington for the best London - Washington, D.C. flight prices

How far in advance should you book London to Washington, D.C. flights?

56 days before. The cheapest time to buy a flight from London to Washington, D.C. is approximately 56 days to departure

How many flights depart from London to Washington, D.C. on average per day?

30 flights are operational weekly from London to Washington, D.C. as of April 2024. The most popular departure time for this route is 11:00, with 53% of flights per day taking off in the afternoon.

How many flights depart from London to Washington, D.C. on average per week?

The number of flights available between London and Washington, D.C. is 210 per week as of April 2024. The most frequent departure day is Monday, with 14% of weekly flights leaving on this day.

What cabin class options are available on London to Washington, D.C. flights?

There are 3 cabin classes available to choose from on London to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Washington, D.C. flights?

You could potentially save up to 43% on your flight if you consider stops on a London to Washington, D.C. flight.

Cheap London to Washington, D.C. (LON to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Washington, D.C.

Best price found

£175

Fastest flight time

7h 50m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from London in the past 72 hours is £175. The best return flight deal from London to Washington, D.C. found on momondo in the last 72 hours is £281.
The fastest flight from London to Washington, D.C. takes 7h 50m
Direct flights go from London to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

  • How far is London to Washington, D.C. by plane?

    The distance between London and Washington, D.C. is about 3662.3 mi. 7h 50m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London to Washington, D.C.?

    Prices for flights from London to Washington, D.C. were last updated today.

  • How many operators does momondo search for flights from London to Washington, D.C.?

  • How old do you have to be to fly from London to Washington, D.C.?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Why use momondo?

Why should I use momondo to find a flight deal from London to Washington, D.C.?

Finding the right flight to Washington, D.C. from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from London to Washington, D.C. with flexible booking policies on momondo?

All flight searches from London to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Washington, D.C.?

Once you have performed a search for London to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


An easier way to manage your Washington, D.C. trip

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To?
Tue 30/4
Tue 7/5
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Find better results for your stay in the United States

Fly into one of these airports located in Washington, D.C.
Airports listed have a maximum distance of 22.4 mi from Washington, D.C.