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Cheap flights from London Heathrow Airport to Washington, D.C. from £234

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 Heathrow Airport to Washington, D.C. departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Wed 8/5

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Easily compare return flights from London Heathrow Airport 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 Heathrow Airport to Washington, D.C. by changing tabs
Multiple Airlines
22 May
LHR06:45London Heathrow
15h 55m
2 stops
IAD17:40Washington, D.C. Dulles Intl
29 May
IAD18:50Washington, D.C. Dulles Intl
21h 45m
2 stops
LHR21:35London Heathrow
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
JetBlue
15 May
LHR08:25London Heathrow
12h 18m
1 stop
DCA15:43Washington, D.C. Reagan-National
29 May
DCA10:20Washington, D.C. Reagan-National
15h 10m
1 stop
LHR06:30London Heathrow
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
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
American Airlines
16 Sept
LHR16:35London Heathrow
31h 40m
1 stop
IAD19:15Washington, D.C. Dulles Intl
30 Sept
IAD14:05Washington, D.C. Dulles Intl
15h 05m
2 stops
LHR10:10London Heathrow

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

If you're looking for one-way flights from London Heathrow Airport to Washington, D.C., view some of our deals below provided by Iberia, Icelandair and JetBlue
Multiple Airlines
1 May
LHR07:55London Heathrow
14h 45m
1 stop
IAD17:40Washington, D.C. Dulles Intl
Icelandair
13 Sept
LHR13:05London Heathrow
11h 10m
1 stop
IAD19:15Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
13 Sept
LHR12:00London Heathrow
13h 45m
1 stop
IAD20:45Washington, D.C. Dulles Intl

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

Find and compare return flight prices for your last-minute flight from London Heathrow Airport to Washington, D.C.
Multiple Airlines
5 May
LHR07:25London Heathrow
15h 15m
1 stop
BWI17:40Baltimore/Washington
10 May
BWI18:50Baltimore/Washington
14h 25m
1 stop
LHR14:15London 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
British Airways
3 May
LHR17:25London Heathrow
8h 05m
IAD20:30Washington, D.C. Dulles Intl
13 May
IAD22:45Washington, D.C. Dulles Intl
7h 20m
LHR11:05London Heathrow
Virgin Atlantic
1 May
LHR09:55London Heathrow
11h 05m
1 stop
IAD16:00Washington, D.C. Dulles Intl
11 May
IAD16:59Washington, D.C. Dulles Intl
11h 26m
1 stop
LHR09:25London Heathrow
Finnair
3 May
LHR12:30London Heathrow
16h 38m
1 stop
BWI00:08Baltimore/Washington
6 May
BWI17:35Baltimore/Washington
13h 35m
1 stop
LHR12:10London Heathrow
United Airlines
4 May
LHR06:50London Heathrow
12h 25m
1 stop
IAD14:15Washington, D.C. Dulles Intl
9 May
IAD08:16Washington, D.C. Dulles Intl
20h 44m
1 stop
LHR10:00London Heathrow

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

Compare and see reviews for airlines that fly from London Heathrow Airport to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Norse Atlantic UKPriceFrom £256Free CancellationRating
6.8
29 reviews
Search Norse Atlantic UK flights
PLAYPriceFrom £281Free CancellationRating
7.2
67 reviews
Search PLAY flights
IcelandairPriceFrom £374Free CancellationRating
7.1
1,346 reviews
Search Icelandair flights
JetBluePriceFrom £382Free CancellationRating
7.6
4,609 reviews
Search JetBlue flights
Virgin AtlanticPriceFrom £385Free CancellationRating
7.7
747 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £391Free CancellationRating
7.4
11,226 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
14,884 reviews
Search American Airlines flights
British AirwaysPriceFrom £417Free CancellationRating
6.8
6,916 reviews
Search British Airways flights
  • Delta Flights From London Heathrow Airport to Washington, D.C.

    Delta flies from London Heathrow Airport to Washington, D.C. around 7 times per week, with 10,966 momondo users rating the airline 8.0/10. The cheapest Delta deal from London Heathrow Airport to Washington, D.C. in the last 72 hours was £641 (round-trip), much lower than the average airfare cost of £837 for Delta flights on this route.

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

    The best KLM deal for London Heathrow Airport to Washington, D.C. flight tickets found on momondo in the last 72 hours was £604, round-trip. It should be noted that an average KLM flight deal for this route in this time was higher, at £824 round-trip. KLM operates 7 flights out of London Heathrow Airport into Washington, D.C. in an average week, so prices vary by time and availability. 1,628 KLM reviews by users on momondo have scored the airline at 7.8/10.


TAP AIR PORTUGAL flights from London Heathrow Airport to Washington, D.C.

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Washington, D.C. flight tickets
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
TAP AIR PORTUGAL
6 Oct
LHR19:50London Heathrow
24h 25m
1 stop
IAD15:15Washington, D.C. Dulles Intl
17 Oct
IAD17:20Washington, D.C. Dulles Intl
24h 35m
1 stop
LHR22:55London Heathrow
TAP AIR PORTUGAL
6 Sept
LHR12:00London Heathrow
13h 45m
1 stop
IAD20:45Washington, D.C. Dulles Intl
10 Sept
IAD22:30Washington, D.C. Dulles Intl
14h 15m
1 stop
LHR17:45London Heathrow

Icelandair flights from London Heathrow Airport to Washington, D.C.

Our best Icelandair deals on London Heathrow Airport to Washington, D.C. flight tickets
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
19 May
LHR21:25London Heathrow
27h 00m
1 stop
BWI19:25Baltimore/Washington
25 Jun
BWI20:30Baltimore/Washington
10h 25m
1 stop
LHR11:55London Heathrow
Icelandair
13 May
LHR21:25London Heathrow
26h 50m
1 stop
IAD19:15Washington, D.C. Dulles Intl
10 Sept
IAD20:30Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR20:20London Heathrow

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

February. The cheapest time of year to fly to Washington, D.C. from London Heathrow Airport is February. The most expensive is August.

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

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

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

At midday. London Heathrow Airport to Washington, D.C. flights are approximately 7% more expensive in the evening than at midday

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

PLAY. Air Canada, Finnair, and Icelandair are the most popular carriers operating from London Heathrow Airport to Washington, D.C.

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

45 days before. The cheapest time to buy a flight from London Heathrow Airport to Washington, D.C. is approximately 45 days to departure

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

As of April 2024, there are 30 flights per week flying from London Heathrow Airport to Washington, D.C.. The most common time of day flights depart is 11:00, with 53% of flights taking off in the afternoon.

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

210 flights are operational weekly from London Heathrow Airport to Washington, D.C. as of April 2024. The most popular departure day for this route is Monday, with 14% of flights per week taking off on this day.

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

There are 3 cabin classes available to choose from on London Heathrow Airport 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 Heathrow Airport to Washington, D.C. flights?

You could potentially save up to 10% on your flight if you consider stops on a London Heathrow Airport to Washington, D.C. flight.

Cheap London Heathrow Airport to Washington, D.C. (LHR to WAS) flight deals and tips

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

Best price found

£234

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 Heathrow Airport in the past 72 hours is £234. The best return flight deal from London Heathrow Airport to Washington, D.C. found on momondo in the last 72 hours is £425.
The fastest flight from London Heathrow Airport to Washington, D.C. takes 7h 50m
Direct flights go from London Heathrow Airport 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 Heathrow to Washington, D.C. by plane?

    The straight-line distance from London Heathrow to Washington, D.C. is 3649.4 mi. Flights usually cover this in 7h 50m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London Heathrow Airport to Washington, D.C. are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Washington, D.C..

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

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


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?

Flights from London to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Washington, D.C..

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

Of course. momondo tracks the price of London to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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Wed 8/5
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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.