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Cheap flights from London to Washington, D.C. from £313

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 16/9. 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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Cheap return flights

JetBlue Logo
12:10 - 20:51LGW-DCA
13h 41m1 stop
JetBlue Logo
16:39 - 09:35DCA-LGW
11h 56m1 stop
£384JetBlue
Find Deal
Wed, 8 Oct - Wed, 22 Oct
Icelandair Logo
12:10 - 20:51LGW-DCA
13h 41m1 stop
Icelandair Logo
08:00 - 09:35DCA-LGW
20h 35m1 stop
£387Icelandair
Find Deal
Wed, 8 Oct - Mon, 13 Oct
Icelandair Logo
12:10 - 20:51LGW-DCA
13h 41m1 stop
Icelandair Logo
08:00 - 09:35DCA-LGW
20h 35m1 stop
£390Icelandair
Find Deal
Wed, 8 Oct - Mon, 13 Oct
JetBlue Logo
12:10 - 09:46LGW-DCA
26h 36m1 stop
JetBlue Logo
18:59 - 09:35DCA-LGW
9h 36m1 stop
£393JetBlue
Find Deal
Wed, 3 Sep - Wed, 17 Sep
Air Canada Logo
06:50 - 15:51LHR-DCA
14h 01m2 stops
Air Canada Logo
09:40 - 06:30DCA-LHR
15h 50m1 stop
£441Air Canada
Find Deal
Fri, 12 Sep - Tue, 16 Sep
British Airways Logo
15:05 - 23:07LGW-DCA
13h 02m1 stop
British Airways Logo
13:39 - 08:10DCA-LGW
13h 31m1 stop
£446British Airways
Find Deal
Wed, 17 Sep - Wed, 1 Oct
Air Canada Logo
06:50 - 15:51LHR-DCA
14h 01m2 stops
Air Canada Logo
16:35 - 09:35DCA-LHR
12h 00m1 stop
£458Air Canada
Find Deal
Tue, 16 Sep - Tue, 23 Sep
British Airways Logo
15:05 - 23:07LGW-DCA
13h 02m1 stop
British Airways Logo
15:35 - 08:10DCA-LGW
11h 35m1 stop
£459British Airways
Find Deal
Thu, 11 Sep - Sat, 20 Sep
Virgin Atlantic Logo
10:00 - 22:57LCY-DCA
17h 57m2 stops
Virgin Atlantic Logo
13:20 - 07:15DCA-LCY
12h 55m2 stops
£514Virgin Atlantic
Find Deal
Mon, 15 Sep - Mon, 22 Sep
Virgin Atlantic Logo
08:40 - 17:05LCY-DCA
13h 25m2 stops
Virgin Atlantic Logo
13:20 - 07:15DCA-LCY
12h 55m2 stops
£520Virgin Atlantic
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Wed, 17 Sep - Wed, 1 Oct

British Airways flights from London to Washington, D.C. Reagan-National Airport

Our best British Airways deals on London to Washington, D.C. Reagan-National Airport flight tickets
British Airways
17 Sept
LGW15:05London Gatwick
13h 02m
1 stop
DCA23:07Washington, D.C. Reagan-National
1 Oct
DCA13:39Washington, D.C. Reagan-National
13h 31m
1 stop
LGW08:10London Gatwick
£446
Find similar
British Airways
11 Sept
LGW15:05London Gatwick
13h 02m
1 stop
DCA23:07Washington, D.C. Reagan-National
20 Sept
DCA15:35Washington, D.C. Reagan-National
11h 35m
1 stop
LGW08:10London Gatwick
£459
Find similar
British Airways
11 Sept
LGW15:05London Gatwick
13h 02m
1 stop
DCA23:07Washington, D.C. Reagan-National
20 Sept
DCA15:35Washington, D.C. Reagan-National
11h 35m
1 stop
LGW08:10London Gatwick
£463
Find similar

Air Canada flights from London to Washington, D.C. Reagan-National Airport

Our best Air Canada deals on London to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
12 Sept
LHR06:50London Heathrow
14h 01m
2 stops
DCA15:51Washington, D.C. Reagan-National
16 Sept
DCA09:40Washington, D.C. Reagan-National
15h 50m
1 stop
LHR06:30London Heathrow
£441
Find similar
Air Canada
16 Sept
LHR06:50London Heathrow
14h 01m
2 stops
DCA15:51Washington, D.C. Reagan-National
23 Sept
DCA16:35Washington, D.C. Reagan-National
12h 00m
1 stop
LHR09:35London Heathrow
£458
Find similar
Air Canada
11 Sept
LHR14:05London Heathrow
27h 03m
1 stop
DCA12:08Washington, D.C. Reagan-National
18 Sept
DCA12:55Washington, D.C. Reagan-National
12h 35m
1 stop
LHR06:30London Heathrow
£461
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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 31 July 2025.
Use the filters below to find and compare flights from London to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 8/10

12:10-20:51

1 stop13h 41m

Washington, D.C. Reagan-National

Wed 22/10

16:39-09:35

1 stop11h 56m

£384

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 8/10

12:10-20:51

1 stop13h 41m

Washington, D.C. Reagan-National

Mon 13/10

08:00-09:35

1 stop20h 35m

£387

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 8/10

12:10-20:51

1 stop13h 41m

Washington, D.C. Reagan-National

Mon 13/10

08:00-09:35

1 stop20h 35m

£390

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 3/9

12:10-09:46

1 stop26h 36m

Washington, D.C. Reagan-National

Wed 17/9

18:59-09:35

1 stop9h 36m

£393

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 12/9

06:50-15:51

2 stops14h 01m

Washington, D.C. Reagan-National

Tue 16/9

09:40-06:30

1 stop15h 50m

£441

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 17/9

15:05-23:07

1 stop13h 02m

Washington, D.C. Reagan-National

Wed 1/10

13:39-08:10

1 stop13h 31m

£446

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 16/9

06:50-15:51

2 stops14h 01m

Washington, D.C. Reagan-National

Tue 23/9

16:35-09:35

1 stop12h 00m

£458

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 11/9

15:05-23:07

1 stop13h 02m

Washington, D.C. Reagan-National

Sat 20/9

15:35-08:10

1 stop11h 35m

£459

LondonWashington, D.C.

LCY - DCA

LCYDCA

London City

Mon 15/9

10:00-22:57

2 stops17h 57m

Washington, D.C. Reagan-National

Mon 22/9

13:20-07:15

2 stops12h 55m

£514

LondonWashington, D.C.

LCY - DCA

LCYDCA

London City

Wed 17/9

08:40-17:05

2 stops13h 25m

Washington, D.C. Reagan-National

Wed 1/10

13:20-07:15

2 stops12h 55m

£520

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 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 and Washington, D.C. Reagan-National Airport?

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

The month of February is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from London, with most prices found around £434. If you aren’t able to travel during the month of February, then book flights to Washington, D.C. Reagan-National Airport from London during January instead. Flights to Washington, D.C. Reagan-National Airport in January, while not as cheap as those in February, still average around £495.

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

The cheapest day to depart from London 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 £562. 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 £624.

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 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 £576. Try not to purchase tickets in the evening because they tend to be around £637. 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 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 £630 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 for as low as £476 on momondo.

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

Are you open to changing your travel dates? Check out the ideal times to fly from London 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 to Washington, D.C. Reagan-National Airport (LON to DCA) flight deals and tips

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

Best price found

£313

Fastest flight time

11h 07m

Direct flights

None
The best one-way flight to Washington, D.C. Reagan-National Airport from London in the past 72 hours is £313. The best return flight deal from London to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is £384.
The fastest flight from London to Washington, D.C. Reagan-National Airport takes 11h 07m
There are no direct flights from London to Washington, D.C. Reagan-National Airport. Popular non-direct routes for this connection are London Gatwick Airport - Washington, D.C. Reagan-National Airport and London Heathrow Airport - Washington, D.C. Reagan-National Airport.
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  • How far is London to Washington, D.C. Reagan-National by plane?

    Washington, D.C. Reagan-National is 3664.8 mi away from London. 11h 07m is a normal flight duration for this route.

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

    Prices for flights from London to Washington, D.C. Reagan-National Airport were last updated today.

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

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

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

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

    The travel and health documents required for your trip to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Compare and see reviews for airlines that fly from London to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom £378Free CancellationRating
7.2
2,913 reviews
Search JetBlue flights
IcelandairPriceFrom £381Free CancellationRating
7.0
519 reviews
Search Icelandair flights
LufthansaPriceFrom £483Free CancellationRating
6.8
7,269 reviews
Search Lufthansa flights
British AirwaysPriceFrom £492Free CancellationRating
6.6
7,217 reviews
Search British Airways flights
United AirlinesPriceFrom £495Free CancellationRating
7.4
8,896 reviews
Search United Airlines flights
FinnairPriceFrom £503Free CancellationRating
7.6
1,316 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £507Free CancellationRating
7.4
655 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom £523Free CancellationRating
7.1
9,837 reviews
Search Air Canada 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
Essex
Alexandria
Fairfax
Manassas
Bethesda
Oxon Hill
College Park
Linthicum Heights
Gettysburg
Hanover
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?

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.?

Once all potential London to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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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