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Cheap flights from London Heathrow Airport to Washington, D.C. from £388

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 17/10. 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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Find the cheapest flights from London Heathrow Airport to Washington, D.C.

Cheap return flights

Virgin Atlantic Logo
20:25 - 22:59LHR-DCA
30h 34m2 stops
Virgin Atlantic Logo
18:45 - 07:50DCA-LHR
32h 05m1 stop
£392Virgin Atlantic
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Mon, 27 Oct - Fri, 7 Nov
Multiple Airlines Logo
11:10 - 21:56LHR-DCA
15h 46m2 stops
Multiple Airlines Logo
16:10 - 07:10DCA-LHR
10h 00m1 stop
£393Multiple Airlines
Find Deal
Wed, 5 Nov - Mon, 10 Nov
Air Canada Logo
06:50 - 15:56LHR-DCA
13h 06m2 stops
Air Canada Logo
16:10 - 07:10DCA-LHR
10h 00m1 stop
£394Air Canada
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Wed, 29 Oct - Wed, 5 Nov
Air Canada Logo
09:00 - 19:45LHR-DCA
15h 45m2 stops
Air Canada Logo
11:05 - 07:10DCA-LHR
15h 05m1 stop
£395Air Canada
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Fri, 7 Nov - Mon, 10 Nov
British Airways Logo
17:00 - 23:07LHR-DCA
11h 07m1 stop
British Airways Logo
06:38 - 21:40DCA-LHR
10h 02m1 stop
£403British Airways
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Mon, 29 Sep - Wed, 15 Oct
British Airways Logo
11:30 - 23:07LHR-DCA
16h 37m2 stops
British Airways Logo
19:23 - 09:40DCA-LHR
9h 17m1 stop
£408British Airways
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Wed, 24 Sep - Sun, 28 Sep
Finnair Logo
17:00 - 22:57LHR-DCA
10h 57m1 stop
Finnair Logo
07:35 - 06:55DCA-LHR
18h 20m1 stop
£408Finnair
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Wed, 8 Oct - Mon, 13 Oct
Finnair Logo
10:35 - 22:57LHR-DCA
16h 22m1 stop
Finnair Logo
19:44 - 12:00DCA-LHR
11h 16m1 stop
£409Finnair
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Fri, 31 Oct - Fri, 7 Nov
JetBlue Logo
08:15 - 22:56LHR-DCA
19h 41m1 stop
JetBlue Logo
06:19 - 20:45DCA-LHR
9h 26m1 stop
£431JetBlue
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Fri, 19 Sep - Thu, 25 Sep
JetBlue Logo
08:25 - 17:05LHR-DCA
13h 40m1 stop
JetBlue Logo
18:59 - 06:30DCA-LHR
30h 31m1 stop
£432JetBlue
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Sat, 20 Sep - Mon, 22 Sep

Virgin Atlantic flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport

Our best Virgin Atlantic deals on London Heathrow Airport to Washington, D.C. Reagan-National Airport flight tickets
Virgin Atlantic
27 Oct
LHR20:25London Heathrow
30h 34m
2 stops
DCA22:59Washington, D.C. Reagan-National
7 Nov
DCA18:45Washington, D.C. Reagan-National
32h 05m
1 stop
LHR07:50London Heathrow
£392
Find similar
Virgin Atlantic
25 Sept
LHR12:45London Heathrow
11h 59m
1 stop
DCA19:44Washington, D.C. Reagan-National
2 Oct
DCA17:00Washington, D.C. Reagan-National
11h 15m
1 stop
LHR09:15London Heathrow
£406
Find similar
Virgin Atlantic
5 Nov
LHR10:10London Heathrow
17h 49m
2 stops
DCA22:59Washington, D.C. Reagan-National
8 Nov
DCA16:03Washington, D.C. Reagan-National
33h 22m
1 stop
LHR06:25London Heathrow
£407
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United Airlines flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport

Our best United Airlines deals on London Heathrow Airport to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
23 Sept
LHR07:45London Heathrow
13h 37m
2 stops
DCA16:22Washington, D.C. Reagan-National
29 Sept
DCA12:00Washington, D.C. Reagan-National
13h 20m
1 stop
LHR06:20London Heathrow
£400
Find similar
United Airlines
27 Sept
LHR09:30London Heathrow
11h 21m
1 stop
DCA15:51Washington, D.C. Reagan-National
4 Oct
DCA16:35Washington, D.C. Reagan-National
12h 00m
1 stop
LHR09:35London Heathrow
£416
Find similar
United Airlines
22 Sept
LHR09:30London Heathrow
11h 21m
1 stop
DCA15:51Washington, D.C. Reagan-National
28 Sept
DCA15:27Washington, D.C. Reagan-National
10h 18m
1 stop
LHR06:45London Heathrow
£419
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 27/10

20:25-22:59

2 stops30h 34m

Washington, D.C. Reagan-National

Fri 7/11

18:45-07:50

1 stop32h 05m

£392

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 5/11

11:10-21:56

2 stops15h 46m

Washington, D.C. Reagan-National

Mon 10/11

16:10-07:10

1 stop10h 00m

£393

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 29/10

06:50-15:56

2 stops13h 06m

Washington, D.C. Reagan-National

Wed 5/11

16:10-07:10

1 stop10h 00m

£394

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 7/11

09:00-19:45

2 stops15h 45m

Washington, D.C. Reagan-National

Mon 10/11

11:05-07:10

1 stop15h 05m

£395

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 29/9

17:00-23:07

1 stop11h 07m

Washington, D.C. Reagan-National

Wed 15/10

06:38-21:40

1 stop10h 02m

£403

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 24/9

11:30-23:07

2 stops16h 37m

Washington, D.C. Reagan-National

Sun 28/9

19:23-09:40

1 stop9h 17m

£408

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 8/10

17:00-22:57

1 stop10h 57m

Washington, D.C. Reagan-National

Mon 13/10

07:35-06:55

1 stop18h 20m

£408

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 31/10

10:35-22:57

1 stop16h 22m

Washington, D.C. Reagan-National

Fri 7/11

19:44-12:00

1 stop11h 16m

£409

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 19/9

08:15-22:56

1 stop19h 41m

Washington, D.C. Reagan-National

Thu 25/9

06:19-20:45

1 stop9h 26m

£431

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 20/9

08:25-17:05

1 stop13h 40m

Washington, D.C. Reagan-National

Mon 22/9

18:59-06:30

1 stop30h 31m

£432

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

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 typical price of a round-trip flight between London Heathrow Airport and Washington, D.C. Reagan-National Airport?

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of January is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from London Heathrow Airport, with most prices found around £480. If you aren’t able to travel during the month of January, then book flights to Washington, D.C. Reagan-National Airport from London Heathrow Airport during March instead. Flights to Washington, D.C. Reagan-National Airport in March, while not as cheap as those in January, still average around £487.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from London Heathrow Airport to Washington, D.C. Reagan-National Airport is on a Thursday. Travellers who choose to depart for Washington, D.C. Reagan-National Airport on a Thursday will often find tickets for as low as £548. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Reagan-National Airport on Saturday is £609.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest London Heathrow Airport to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the morning. Our users have found flights to Washington, D.C. Reagan-National Airport in the morning for as low as £562. Try not to purchase tickets in the evening because they tend to be around £622. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around £604 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from London Heathrow Airport for as low as £465 on momondo.

When to book flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Washington, D.C. Reagan-National Airport (LHR to DCA) flight deals and tips

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

Direct flights

None
There are no direct flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport. There are no popular flight routes from London Heathrow Airport to Washington, D.C. Reagan-National Airport.
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  • How far is London Heathrow to Washington, D.C. Reagan-National by plane?

    A flight from London Heathrow to Washington, D.C. Reagan-National will travel around 3651.9 mi. By plane, this route typically takes 10h 55m.

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

    Prices for flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport refresh daily.

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

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

    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 Heathrow Airport to Washington, D.C. Reagan-National Airport.

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

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London Heathrow Airport to Washington, D.C. Reagan-National Airport?

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

Compare and see reviews for airlines that fly from London Heathrow Airport to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £358Free CancellationRating
7.0
544 reviews
Search Icelandair flights
JetBluePriceFrom £369Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
United AirlinesPriceFrom £413Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £458Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom £464Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
LufthansaPriceFrom £472Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
British AirwaysPriceFrom £480Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
FinnairPriceFrom £491Free CancellationRating
7.6
1,324 reviews
Search Finnair flights

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
College Park
Essex
Alexandria
Fairfax
Bethesda
Oxon Hill
Gettysburg
Cambridge
Ellicott City
Westminster
Arlington
Woodbridge
Owings Mills
Silver Spring
National Harbor

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from London.

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

Yes. All flights to Washington, D.C. from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from London and alert you when they change.

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