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Cheap flights from London Gatwick Airport to Washington, D.C. from $501

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 Gatwick Airport to Washington, D.C. departing on 5/26. 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 Gatwick Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
2:30 pm - 8:59 pm
LGW
-
DCA
35h 29m
1 stop
British Airways Logo
3:10 pm - 6:50 am
DCA
-
LGW
34h 40m
1 stop
$540British Airways
Wed, May 13 - Sat, May 16
British Airways Logo
2:00 pm - 11:26 pm
LGW
-
DCA
14h 26m
1 stop
British Airways Logo
10:23 am - 6:50 am
DCA
-
LGW
15h 27m
1 stop
$575British Airways
Mon, Jun 1 - Mon, Jun 15
British Airways Logo
10:45 am - 8:59 pm
LGW
-
DCA
15h 14m
1 stop
British Airways Logo
11:17 am - 6:50 am
DCA
-
LGW
14h 33m
1 stop
$581British Airways
Tue, Apr 21 - Tue, May 5
American Airlines Logo
12:20 pm - 11:59 pm
LGW
-
DCA
16h 39m
2 stops
American Airlines Logo
2:36 pm - 8:40 am
DCA
-
LGW
13h 04m
1 stop
$585American Airlines
Thu, Apr 16 - Tue, Apr 28
American Airlines Logo
12:20 pm - 9:23 pm
LGW
-
DCA
14h 03m
1 stop
American Airlines Logo
7:29 am - 8:40 am
DCA
-
LGW
20h 11m
1 stop
$589American Airlines
Thu, Apr 16 - Tue, Apr 28
British Airways Logo
2:00 pm - 11:34 pm
LGW
-
DCA
14h 34m
1 stop
British Airways Logo
1:29 pm - 10:50 am
DCA
-
LGW
16h 21m
2 stops
$590British Airways
Mon, Apr 13 - Sun, Apr 26
American Airlines Logo
12:20 pm - 11:59 pm
LGW
-
DCA
16h 39m
2 stops
American Airlines Logo
7:29 am - 8:40 am
DCA
-
LGW
20h 11m
1 stop
$596American Airlines
Thu, Apr 16 - Thu, Apr 23
American Airlines Logo
12:20 pm - 9:23 pm
LGW
-
DCA
14h 03m
1 stop
American Airlines Logo
7:29 am - 8:40 am
DCA
-
LGW
20h 11m
1 stop
$600American Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
12:20 pm - 10:00 pm
LGW
-
DCA
14h 40m
1 stop
Multiple Airlines Logo
10:10 am - 8:40 am
DCA
-
LGW
17h 30m
1 stop
$606Multiple Airlines
Sat, May 2 - Sat, May 16
Iberia Logo
11:30 am - 10:29 pm
LGW
-
DCA
15h 59m
2 stops
Iberia Logo
1:45 pm - 10:50 am
DCA
-
LGW
16h 05m
2 stops
$609Iberia
Thu, Apr 16 - Tue, Apr 28

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

Our best American Airlines deals on London Gatwick Airport to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Apr 16
LGW12:20 pmLondon Gatwick
16h 39m
2 stops
DCA11:59 pmWashington, D.C. Reagan-National
Apr 28
DCA2:36 pmWashington, D.C. Reagan-National
13h 04m
1 stop
LGW8:40 amLondon Gatwick
$585
American Airlines
Apr 16
LGW12:20 pmLondon Gatwick
14h 03m
1 stop
DCA9:23 pmWashington, D.C. Reagan-National
Apr 28
DCA7:29 amWashington, D.C. Reagan-National
20h 11m
1 stop
LGW8:40 amLondon Gatwick
$589
American Airlines
Apr 16
LGW12:20 pmLondon Gatwick
16h 39m
2 stops
DCA11:59 pmWashington, D.C. Reagan-National
Apr 23
DCA7:29 amWashington, D.C. Reagan-National
20h 11m
1 stop
LGW8:40 amLondon Gatwick
$596

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

Our best Iberia deals on London Gatwick Airport to Washington, D.C. Reagan-National Airport flight tickets
Iberia
Apr 16
LGW11:30 amLondon Gatwick
15h 59m
2 stops
DCA10:29 pmWashington, D.C. Reagan-National
Apr 28
DCA1:45 pmWashington, D.C. Reagan-National
16h 05m
2 stops
LGW10:50 amLondon Gatwick
$609
Iberia
Apr 13
LGW8:40 pmLondon Gatwick
27h 18m
2 stops
DCA6:58 pmWashington, D.C. Reagan-National
Apr 26
DCA1:29 pmWashington, D.C. Reagan-National
16h 21m
2 stops
LGW10:50 amLondon Gatwick
$625
Iberia
Apr 16
LGW11:30 amLondon Gatwick
15h 59m
2 stops
DCA10:29 pmWashington, D.C. Reagan-National
Apr 23
DCA1:25 pmWashington, D.C. Reagan-National
16h 25m
2 stops
LGW10:50 amLondon Gatwick
$649

momondo Fare Finder

 
Customize your flight search to find flights from London Gatwick 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 832,500 searches. Data last updated March 6, 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 5/13

2:30 pm-8:59 pm

1 stop35h 29m

Washington, D.C. Reagan-National

Sat 5/16

3:10 pm-6:50 am

1 stop34h 40m

$540

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Mon 6/1

2:00 pm-11:26 pm

1 stop14h 26m

Washington, D.C. Reagan-National

Mon 6/15

10:23 am-6:50 am

1 stop15h 27m

$575

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Tue 4/21

10:45 am-8:59 pm

1 stop15h 14m

Washington, D.C. Reagan-National

Tue 5/5

11:17 am-6:50 am

1 stop14h 33m

$581
Quickest round-trip

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 4/16

12:20 pm-11:59 pm

2 stops16h 39m

Washington, D.C. Reagan-National

Tue 4/28

2:36 pm-8:40 am

1 stop13h 04m

$585

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 4/16

12:20 pm-9:23 pm

1 stop14h 03m

Washington, D.C. Reagan-National

Tue 4/28

7:29 am-8:40 am

1 stop20h 11m

$589

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Mon 4/13

2:00 pm-11:34 pm

1 stop14h 34m

Washington, D.C. Reagan-National

Sun 4/26

1:29 pm-10:50 am

2 stops16h 21m

$590

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 4/16

12:20 pm-11:59 pm

2 stops16h 39m

Washington, D.C. Reagan-National

Thu 4/23

7:29 am-8:40 am

1 stop20h 11m

$596

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 4/16

12:20 pm-9:23 pm

1 stop14h 03m

Washington, D.C. Reagan-National

Thu 4/23

7:29 am-8:40 am

1 stop20h 11m

$600

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Sat 5/2

12:20 pm-10:00 pm

1 stop14h 40m

Washington, D.C. Reagan-National

Sat 5/16

10:10 am-8:40 am

1 stop17h 30m

$606

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 4/16

11:30 am-10:29 pm

2 stops15h 59m

Washington, D.C. Reagan-National

Tue 4/28

1:45 pm-10:50 am

2 stops16h 05m

$609

Flights are sorted by cheapest round-trip 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 Gatwick 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 cheapest airline that flies from London Gatwick to Washington, D.C. Reagan-National?

Icelandair, British Airways, and TAP AIR PORTUGAL are the most popular carriers operating from London Gatwick to Washington, D.C. Reagan-National

When to book flights from London Gatwick 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 Gatwick Airport to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

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

Fastest flight time

12h 05m

Direct flights

None
The fastest flight from London Gatwick Airport to Washington, D.C. Reagan-National Airport takes 12h 05m
There are no direct flights from London Gatwick Airport to Washington, D.C. Reagan-National Airport. There are no popular flight routes from London Gatwick Airport to Washington, D.C. Reagan-National Airport.
Search flight deals

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

    London Gatwick and Washington, D.C. Reagan-National are 3670.2 mi apart from one another. Flights usually cover this in 12h 05m, depending on flying conditions and air traffic around both airports.

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Gatwick 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.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Colonial Beach
Laurel
Towson
Silver Spring
Gaithersburg
Fredericksburg
Rockville
Tysons
Manassas
Springfield
Bethesda
Fairfax
Linthicum Heights
Reston

Why use momondo?

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

It is quick and easy to find London to Washington, D.C. 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 Washington, D.C. that suits you.

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.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Washington, D.C. from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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