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Cheap flights from London Gatwick Airport to Washington, D.C. from $547

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 2/17. 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 round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
11:20 am - 11:34 pmLGW-DCA
16h 14m1 stop
British Airways Logo
11:30 am - 7:30 amDCA-LGW
16h 00m1 stop
$619British Airways
Find Deal
lun., mar. 9 - mar., mar. 17
American Airlines Logo
11:20 am - 7:36 pmLGW-DCA
37h 16m2 stops
American Airlines Logo
5:24 pm - 7:30 amDCA-LGW
33h 06m2 stops
$621American Airlines
Find Deal
jue., ene. 15 - dom., ene. 18
British Airways Logo
11:20 am - 11:25 pmLGW-DCA
17h 05m1 stop
British Airways Logo
8:20 am - 7:30 amDCA-LGW
18h 10m1 stop
$625British Airways
Find Deal
mié., ene. 14 - mié., ene. 21
American Airlines Logo
11:20 am - 5:14 pmLGW-DCA
34h 54m1 stop
American Airlines Logo
7:31 pm - 7:30 amDCA-LGW
30h 59m2 stops
$626American Airlines
Find Deal
jue., ene. 15 - dom., ene. 18
American Airlines Logo
11:20 am - 9:24 pmLGW-DCA
15h 04m1 stop
American Airlines Logo
1:44 pm - 9:00 amDCA-LGW
14h 16m1 stop
$627American Airlines
Find Deal
jue., ene. 15 - dom., ene. 18
American Airlines Logo
11:20 am - 11:34 pmLGW-DCA
17h 14m2 stops
American Airlines Logo
10:10 am - 7:30 amDCA-LGW
16h 20m2 stops
$629American Airlines
Find Deal
jue., ene. 8 - mié., ene. 14
American Airlines Logo
11:20 am - 11:34 pmLGW-DCA
17h 14m2 stops
American Airlines Logo
10:05 am - 9:00 amDCA-LGW
17h 55m1 stop
$631American Airlines
Find Deal
jue., ene. 8 - mié., ene. 14
American Airlines Logo
12:30 pm - 2:18 pmLGW-DCA
30h 48m1 stop
American Airlines Logo
6:30 am - 7:30 amDCA-LGW
20h 00m1 stop
$636American Airlines
Find Deal
jue., ene. 8 - mié., ene. 14
Multiple Airlines Logo
11:20 am - 11:34 pmLGW-DCA
16h 14m1 stop
Multiple Airlines Logo
1:30 pm - 10:50 amDCA-LGW
17h 20m2 stops
$650Multiple Airlines
Find Deal
lun., mar. 9 - mar., mar. 17
Multiple Airlines Logo
8:30 am - 8:55 amLGW-DCA
29h 25m3 stops
Multiple Airlines Logo
11:05 am - 9:40 pmDCA-LGW
29h 35m3 stops
$669Multiple Airlines
Find Deal
mié., ene. 14 - mié., ene. 21

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

Our best British Airways deals on London Gatwick Airport to Washington, D.C. Reagan-National Airport flight tickets
British Airways
Mar 9
LGW11:20 amLondon Gatwick
16h 14m
1 stop
DCA11:34 pmWashington, D.C. Reagan-National
Mar 17
DCA11:30 amWashington, D.C. Reagan-National
16h 00m
1 stop
LGW7:30 amLondon Gatwick
$619
Find similar
British Airways
Jan 14
LGW11:20 amLondon Gatwick
17h 05m
1 stop
DCA11:25 pmWashington, D.C. Reagan-National
Jan 21
DCA8:20 amWashington, D.C. Reagan-National
18h 10m
1 stop
LGW7:30 amLondon Gatwick
$625
Find similar
British Airways
Jan 23
LGW11:20 amLondon Gatwick
15h 04m
1 stop
DCA9:24 pmWashington, D.C. Reagan-National
Jan 26
DCA8:20 amWashington, D.C. Reagan-National
18h 10m
1 stop
LGW7:30 amLondon Gatwick
$673
Find similar

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

Our best Finnair deals on London Gatwick Airport to Washington, D.C. Reagan-National Airport flight tickets
Finnair
Jan 9
LGW11:20 amLondon Gatwick
17h 05m
1 stop
DCA11:25 pmWashington, D.C. Reagan-National
Jan 16
DCA8:29 pmWashington, D.C. Reagan-National
31h 31m
1 stop
LGW9:00 amLondon Gatwick
$723
Find similar
Finnair
Dec 11
LGW12:30 pmLondon Gatwick
25h 06m
1 stop
DCA8:36 amWashington, D.C. Reagan-National
Dec 15
DCA8:19 amWashington, D.C. Reagan-National
19h 41m
1 stop
LGW9:00 amLondon Gatwick
$751
Find similar
Finnair
Dec 8
LGW12:30 pmLondon Gatwick
25h 06m
1 stop
DCA8:36 amWashington, D.C. Reagan-National
Dec 20
DCA6:25 pmWashington, D.C. Reagan-National
33h 35m
1 stop
LGW9:00 amLondon Gatwick
$794
Find similar

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 noviembre 26, 2025.
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

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

lun. 3/9

11:20 am-11:34 pm

1 stop16h 14m

Washington, D.C. Reagan-National

mar. 3/17

11:30 am-7:30 am

1 stop16h 00m

$619

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

jue. 1/15

11:20 am-7:36 pm

2 stops37h 16m

Washington, D.C. Reagan-National

dom. 1/18

5:24 pm-7:30 am

2 stops33h 06m

$621

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

mié. 1/14

11:20 am-11:25 pm

1 stop17h 05m

Washington, D.C. Reagan-National

mié. 1/21

8:20 am-7:30 am

1 stop18h 10m

$625

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

jue. 1/15

11:20 am-5:14 pm

1 stop34h 54m

Washington, D.C. Reagan-National

dom. 1/18

7:31 pm-7:30 am

2 stops30h 59m

$626

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

jue. 1/15

11:20 am-9:24 pm

1 stop15h 04m

Washington, D.C. Reagan-National

dom. 1/18

1:44 pm-9:00 am

1 stop14h 16m

$627

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

jue. 1/8

11:20 am-11:34 pm

2 stops17h 14m

Washington, D.C. Reagan-National

mié. 1/14

10:10 am-7:30 am

2 stops16h 20m

$629

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

jue. 1/8

11:20 am-11:34 pm

2 stops17h 14m

Washington, D.C. Reagan-National

mié. 1/14

10:05 am-9:00 am

1 stop17h 55m

$631

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

jue. 1/8

12:30 pm-2:18 pm

1 stop30h 48m

Washington, D.C. Reagan-National

mié. 1/14

6:30 am-7:30 am

1 stop20h 00m

$636

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

lun. 3/9

11:20 am-11:34 pm

1 stop16h 14m

Washington, D.C. Reagan-National

mar. 3/17

1:30 pm-10:50 am

2 stops17h 20m

$650

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

mié. 1/14

8:30 am-8:55 am

3 stops29h 25m

Washington, D.C. Reagan-National

mié. 1/21

11:05 am-9:40 pm

3 stops29h 35m

$669

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

The cheapest day to depart from London Gatwick Airport to Washington, D.C. Reagan-National Airport is on a Tuesday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Tuesday will often find tickets for as low as $642. Flights from London Gatwick Airport to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $1,485. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 Gatwick Airport to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Washington, D.C. Reagan-National Airport in the afternoon for as low as $701. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is at noon when prices are around $1,590.

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 29m

Direct flights

None
The fastest flight from London Gatwick Airport to Washington, D.C. Reagan-National Airport takes 12h 29m
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.
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  • 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 11h 25m, 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

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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