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Cheap flights from Washington, D.C. Reagan-National Airport to London from £293

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to London departing on 11/1. 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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0 bags
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 06:20
DCA
-
LGW
18h 50m1 stop
Multiple Airlines Logo
13:05 - 22:59
LGW
-
DCA
14h 54m1 stop
£427Multiple Airlines
Tue, 5 May - Mon, 11 May
Multiple Airlines Logo
06:00 - 06:00
DCA
-
LGW
19h 00m1 stop
Multiple Airlines Logo
13:00 - 22:47
LGW
-
DCA
14h 47m1 stop
£435Multiple Airlines
Wed, 4 Feb - Wed, 11 Feb
Multiple Airlines Logo
06:00 - 06:00
DCA
-
LGW
19h 00m1 stop
Multiple Airlines Logo
13:00 - 22:59
LGW
-
DCA
14h 59m1 stop
£448Multiple Airlines
Tue, 20 Jan - Sun, 25 Jan
British Airways Logo
08:20 - 07:30
DCA
-
LGW
18h 10m1 stop
British Airways Logo
11:20 - 21:00
LGW
-
DCA
14h 40m1 stop
£457British Airways
Wed, 21 Jan - Sat, 21 Feb
American Airlines Logo
06:30 - 07:30
DCA
-
LGW
20h 00m1 stop
American Airlines Logo
11:20 - 23:36
LGW
-
DCA
17h 16m1 stop
£459American Airlines
Fri, 6 Feb - Wed, 18 Feb
Multiple Airlines Logo
11:05 - 19:05
DCA
-
LGW
27h 00m2 stops
Multiple Airlines Logo
08:40 - 21:58
LGW
-
DCA
18h 18m2 stops
£460Multiple Airlines
Tue, 13 Jan - Wed, 28 Jan
American Airlines Logo
06:30 - 07:30
DCA
-
LGW
20h 00m1 stop
American Airlines Logo
11:20 - 23:59
LGW
-
DCA
17h 39m2 stops
£462American Airlines
Tue, 3 Feb - Wed, 25 Feb
Multiple Airlines Logo
06:00 - 06:00
DCA
-
LGW
19h 00m1 stop
Multiple Airlines Logo
13:00 - 22:59
LGW
-
DCA
14h 59m1 stop
£468Multiple Airlines
Tue, 24 Feb - Sun, 1 Mar
British Airways Logo
15:13 - 10:40
DCA
-
LGW
14h 27m1 stop
British Airways Logo
10:45 - 23:15
LGW
-
DCA
17h 30m1 stop
£469British Airways
Wed, 1 Apr - Wed, 15 Apr
Multiple Airlines Logo
06:00 - 06:00
DCA
-
LGW
19h 00m1 stop
Multiple Airlines Logo
13:00 - 22:59
LGW
-
DCA
14h 59m1 stop
£471Multiple Airlines
Mon, 9 Feb - Mon, 16 Feb

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

Our best British Airways deals on Washington, D.C. Reagan-National Airport to London Gatwick Airport flight tickets
British Airways
21 Jan
DCA08:20Washington, D.C. Reagan-National
18h 10m
1 stop
LGW07:30London Gatwick
21 Feb
LGW11:20London Gatwick
14h 40m
1 stop
DCA21:00Washington, D.C. Reagan-National
£457
Find similar
British Airways
26 Jan
DCA08:20Washington, D.C. Reagan-National
18h 10m
1 stop
LGW07:30London Gatwick
12 May
LGW10:45London Gatwick
15h 45m
1 stop
DCA21:30Washington, D.C. Reagan-National
£469
Find similar
British Airways
11 Jan
DCA11:46Washington, D.C. Reagan-National
14h 44m
1 stop
LGW07:30London Gatwick
20 Jan
LGW11:20London Gatwick
17h 05m
1 stop
DCA23:25Washington, D.C. Reagan-National
£493
Find similar

Icelandair flights from Washington, D.C. Reagan-National Airport to London Gatwick Airport

Our best Icelandair deals on Washington, D.C. Reagan-National Airport to London Gatwick Airport flight tickets
Icelandair
21 Jan
DCA13:00Washington, D.C. Reagan-National
16h 55m
2 stops
LGW10:55London Gatwick
28 Jan
LGW11:55London Gatwick
14h 50m
2 stops
DCA21:45Washington, D.C. Reagan-National
£549
Find similar
Icelandair
19 Apr
DCA19:55Washington, D.C. Reagan-National
13h 45m
2 stops
LGW14:40London Gatwick
5 May
LGW13:00London Gatwick
23h 40m
2 stops
DCA07:40Washington, D.C. Reagan-National
£567
Find similar
Icelandair
3 May
DCA18:45Washington, D.C. Reagan-National
14h 55m
2 stops
LGW14:40London Gatwick
7 May
LGW15:40London Gatwick
21h 00m
2 stops
DCA07:40Washington, D.C. Reagan-National
£573
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. Reagan-National Airport to London Gatwick 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 23 December 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 5/5

06:30-06:20

1 stop18h 50m

London Gatwick

Mon 11/5

13:05-22:59

1 stop14h 54m

£427

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 4/2

06:00-06:00

1 stop19h 00m

London Gatwick

Wed 11/2

13:00-22:47

1 stop14h 47m

£435

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 20/1

06:00-06:00

1 stop19h 00m

London Gatwick

Sun 25/1

13:00-22:59

1 stop14h 59m

£448

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 21/1

08:20-07:30

1 stop18h 10m

London Gatwick

Sat 21/2

11:20-21:00

1 stop14h 40m

£457

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Fri 6/2

06:30-07:30

1 stop20h 00m

London Gatwick

Wed 18/2

11:20-23:36

1 stop17h 16m

£459

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 13/1

11:05-19:05

2 stops27h 00m

London Gatwick

Wed 28/1

08:40-21:58

2 stops18h 18m

£460

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 3/2

06:30-07:30

1 stop20h 00m

London Gatwick

Wed 25/2

11:20-23:59

2 stops17h 39m

£462

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 24/2

06:00-06:00

1 stop19h 00m

London Gatwick

Sun 1/3

13:00-22:59

1 stop14h 59m

£468

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 1/4

15:13-10:40

1 stop14h 27m

London Gatwick

Wed 15/4

10:45-23:15

1 stop17h 30m

£469

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Mon 9/2

06:00-06:00

1 stop19h 00m

London Gatwick

Mon 16/2

13:00-22:59

1 stop14h 59m

£471

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to London from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to London Gatwick 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 cheapest day to depart on your flight to London Gatwick Airport?

According to our data, Thursday is the cheapest day to fly to London Gatwick Airport from Washington, D.C. Reagan-National Airport. The lowest ticket price found for a Thursday departure recently was £621. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. Reagan-National Airport to London Gatwick Airport on a Saturday will generally be more expensive and average around £826. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

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

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

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

Fastest flight time

12h 25m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to London Gatwick Airport takes 12h 25m
There are no direct flights from Washington, D.C. Reagan-National Airport to London Gatwick Airport. There are no popular flight routes from Washington, D.C. Reagan-National Airport to London Gatwick Airport.
Search flight deals

  • How far is Washington, D.C. Reagan-National to London Gatwick by plane?

    There are 3670.2 mi between Washington, D.C. Reagan-National and London Gatwick. Flights usually cover this in 12h 25m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to London Gatwick Airport are updated daily.

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

  • What documentation or ID do you need to fly to London Gatwick Airport?

    The travel and health documents required for your trip to London Gatwick 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 London Gatwick Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Hayes
Chelmsford
Dover
Worthing
Bedford
Colchester
Hounslow
Ramsgate
Romford

Why use momondo?

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

It is quick and easy to find Washington, D.C. to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

momondo does allow users to show only those flights to London from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington, D.C. to London 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 Washington, D.C. to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to London 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.

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