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Cheap flights from District of Columbia to London from $370

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to London departing on 2/13. 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.
Icelandair Logo
7:40 pm - 10:55 am
IAD
-
LGW
10h 15m1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m1 stop
$572Icelandair
Fri, Jan 23 - Fri, May 15
TAP AIR PORTUGAL Logo
10:30 pm - 3:45 pm
IAD
-
LGW
12h 15m1 stop
TAP AIR PORTUGAL Logo
11:00 am - 2:35 pm
LGW
-
IAD
32h 35m2 stops
$573TAP AIR PORTUGAL
Fri, Feb 6 - Mon, Feb 16
TAP AIR PORTUGAL Logo
5:30 pm - 9:50 am
IAD
-
LGW
11h 20m1 stop
TAP AIR PORTUGAL Logo
10:40 am - 3:15 pm
LGW
-
IAD
33h 35m1 stop
$575TAP AIR PORTUGAL
Sat, Jan 31 - Sun, Feb 8
Icelandair Logo
7:40 pm - 10:55 am
IAD
-
LGW
10h 15m1 stop
Icelandair Logo
11:55 am - 6:30 pm
LGW
-
IAD
11h 35m1 stop
$576Icelandair
Sun, Jan 11 - Tue, Jan 20
Icelandair Logo
7:40 pm - 10:55 am
IAD
-
LGW
10h 15m1 stop
Icelandair Logo
11:55 am - 6:30 pm
LGW
-
IAD
11h 35m1 stop
$577Icelandair
Sun, Jan 11 - Tue, Jan 20
Multiple Airlines Logo
4:15 pm - 2:10 pm
DCA
-
LGW
16h 55m2 stops
Multiple Airlines Logo
8:40 am - 9:58 pm
LGW
-
DCA
18h 18m2 stops
$611Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
11:05 am - 5:50 pm
DCA
-
LGW
25h 45m2 stops
Multiple Airlines Logo
6:40 pm - 8:55 am
LGW
-
DCA
43h 15m2 stops
$613Multiple Airlines
Wed, Jan 21 - Wed, Jan 28
British Airways Logo
8:20 am - 7:30 am
DCA
-
LGW
18h 10m1 stop
British Airways Logo
11:20 am - 11:25 pm
LGW
-
DCA
17h 05m1 stop
$614British Airways
Wed, Jan 21 - Tue, Jan 27
American Airlines Logo
10:10 am - 7:30 am
DCA
-
LGW
16h 20m2 stops
American Airlines Logo
11:20 am - 12:34 am
LGW
-
DCA
18h 14m2 stops
$621American Airlines
Wed, Jan 28 - Wed, Feb 4
British Airways Logo
8:00 am - 7:30 am
DCA
-
LGW
18h 30m1 stop
British Airways Logo
10:45 am - 9:30 pm
LGW
-
DCA
15h 45m1 stop
$630British Airways
Tue, Feb 17 - Tue, Apr 28

SWISS flights from District of Columbia to London Gatwick Airport

Our best SWISS deals on District of Columbia to London Gatwick Airport flight tickets
SWISS
Jan 16
IAD6:10 pmWashington, D.C. Dulles Intl
18h 40m
2 stops
LGW5:50 pmLondon Gatwick
Jan 21
LGW6:40 pmLondon Gatwick
25h 30m
1 stop
IAD3:10 pmWashington, D.C. Dulles Intl
$592
Find similar
SWISS
Jan 13
IAD8:30 pmWashington, D.C. Dulles Intl
16h 20m
1 stop
LGW5:50 pmLondon Gatwick
Jan 20
LGW6:40 pmLondon Gatwick
25h 30m
1 stop
IAD3:10 pmWashington, D.C. Dulles Intl
$600
Find similar
SWISS
Jan 13
IAD5:25 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
LGW5:50 pmLondon Gatwick
Jan 21
LGW6:40 pmLondon Gatwick
24h 20m
2 stops
IAD2:00 pmWashington, D.C. Dulles Intl
$604
Find similar

British Airways flights from District of Columbia to London Gatwick Airport

Our best British Airways deals on District of Columbia to London Gatwick Airport flight tickets
British Airways
Jan 21
DCA8:20 amWashington, D.C. Reagan-National
18h 10m
1 stop
LGW7:30 amLondon Gatwick
Jan 27
LGW11:20 amLondon Gatwick
17h 05m
1 stop
DCA11:25 pmWashington, D.C. Reagan-National
$614
Find similar
British Airways
Feb 17
DCA8:00 amWashington, D.C. Reagan-National
18h 30m
1 stop
LGW7:30 amLondon Gatwick
Apr 28
LGW10:45 amLondon Gatwick
15h 45m
1 stop
DCA9:30 pmWashington, D.C. Reagan-National
$630
Find similar
British Airways
Jan 11
DCA8:20 amWashington, D.C. Reagan-National
18h 10m
1 stop
LGW7:30 amLondon Gatwick
Jan 21
LGW11:20 amLondon Gatwick
17h 05m
1 stop
DCA11:25 pmWashington, D.C. Reagan-National
$651
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 832,500 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from District of Columbia to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 1/23

7:40 pm-10:55 am

1 stop10h 15m

London Gatwick

Fri 5/15

3:40 pm-7:20 pm

1 stop32h 40m

$572

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 2/6

10:30 pm-3:45 pm

1 stop12h 15m

London Gatwick

Mon 2/16

11:00 am-2:35 pm

2 stops32h 35m

$573

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 1/31

5:30 pm-9:50 am

1 stop11h 20m

London Gatwick

Sun 2/8

10:40 am-3:15 pm

1 stop33h 35m

$575

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 1/11

7:40 pm-10:55 am

1 stop10h 15m

London Gatwick

Tue 1/20

11:55 am-6:30 pm

1 stop11h 35m

$576

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 1/11

7:40 pm-10:55 am

1 stop10h 15m

London Gatwick

Tue 1/20

11:55 am-6:30 pm

1 stop11h 35m

$577

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 1/28

4:15 pm-2:10 pm

2 stops16h 55m

London Gatwick

Wed 2/4

8:40 am-9:58 pm

2 stops18h 18m

$611

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 1/21

11:05 am-5:50 pm

2 stops25h 45m

London Gatwick

Wed 1/28

6:40 pm-8:55 am

2 stops43h 15m

$613

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 1/21

8:20 am-7:30 am

1 stop18h 10m

London Gatwick

Tue 1/27

11:20 am-11:25 pm

1 stop17h 05m

$614

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 1/28

10:10 am-7:30 am

2 stops16h 20m

London Gatwick

Wed 2/4

11:20 am-12:34 am

2 stops18h 14m

$621

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 2/17

8:00 am-7:30 am

1 stop18h 30m

London Gatwick

Tue 4/28

10:45 am-9:30 pm

1 stop15h 45m

$630

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 London from

How to get the cheapest flight ticket from District of Columbia 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 month to fly to London Gatwick Airport?

In general, January is the cheapest month to fly from District of Columbia to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $556. If you are unable to visit London Gatwick Airport during the month of January, then departing from District of Columbia during the month November is also very affordable. Most momondo users find prices during this month for around $585.

What is the cheapest day to depart on your flight to London Gatwick Airport?

The cheapest day to depart from District of Columbia to London Gatwick Airport is on a Wednesday when prices can be found for as low as $674. 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 London Gatwick Airport on Saturday is $885.

What is the cheapest time of day to depart on your flight to London Gatwick Airport?

Flying to London Gatwick Airport from District of Columbia in the evening is the least expensive time of day to depart. momondo users have found prices as low as $694 when looking at flights departing in the evening. At noon is when there is more demand to fly to London Gatwick Airport, so prices are often more expensive at around $819 per ticket.

Cheap District of Columbia to London Gatwick Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to London Gatwick Airport

Fastest flight time

10h 05m

Direct flights

None
The fastest flight from District of Columbia to London Gatwick Airport takes 10h 05m
There are no direct flights from District of Columbia to London Gatwick Airport. There are no popular flight routes from District of Columbia to London Gatwick Airport.
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to London Gatwick Airport?

    Prices for flights from District of Columbia to London Gatwick Airport are updated daily.

  • How many operators does momondo search for flights from District of Columbia to London Gatwick Airport?

  • How old do you have to be to fly from District of Columbia 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 District of Columbia to London Gatwick Airport.

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

    The required travel and health documents for your London Gatwick Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Gatwick Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from District of Columbia to London Gatwick Airport

Compare and see reviews for airlines that fly from District of Columbia to London Gatwick Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $487Free CancellationRating
7.0
590 reviews
Search Icelandair flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Wembley
Watford
Ilford
Cobham
Folkestone
Romford
Richmond
Uxbridge
Stansted

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to London. momondo saves you time and could save you money on your trip.

Can I find flights from District of Columbia to London with flexible booking policies on momondo?

Flights from District of Columbia to London 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 District of Columbia to London?

Once all potential District of Columbia to London 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 District of Columbia to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from District of Columbia 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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