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Cheap flights from London Gatwick Airport to Washington, D.C. from $296

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 3/5. 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.
Multiple Airlines Logo
2:00 pm - 10:53 pm
LGW
-
BWI
13h 53m
1 stop
Multiple Airlines Logo
9:15 pm - 10:00 am
BWI
-
LGW
32h 45m
1 stop
$537Multiple Airlines
Thu, Mar 5 - Sun, Mar 22
TAP AIR PORTUGAL Logo
10:40 am - 9:00 pm
LGW
-
IAD
15h 20m
1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 9:50 am
IAD
-
LGW
11h 20m
1 stop
$543TAP AIR PORTUGAL
Fri, Feb 27 - Tue, Mar 3
Icelandair Logo
3:40 pm - 10:15 pm
LGW
-
IAD
11h 35m
1 stop
Icelandair Logo
11:20 pm - 2:40 pm
IAD
-
LGW
10h 20m
1 stop
$544Icelandair
Fri, May 22 - Sun, May 31
Icelandair Logo
11:55 am - 6:30 pm
LGW
-
IAD
11h 35m
1 stop
Icelandair Logo
7:40 pm - 10:55 am
IAD
-
LGW
10h 15m
1 stop
$545Icelandair
Wed, Feb 18 - Sat, Feb 28
Multiple Airlines Logo
2:00 pm - 11:17 am
LGW
-
BWI
26h 17m
1 stop
Multiple Airlines Logo
8:25 pm - 10:00 am
BWI
-
LGW
32h 35m
1 stop
$545Multiple Airlines
Mon, Mar 2 - Wed, Mar 4
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
$549Icelandair
Wed, Apr 29 - Sun, May 10
Icelandair Logo
11:55 am - 6:40 pm
LGW
-
BWI
11h 45m
1 stop
Icelandair Logo
7:40 pm - 10:55 am
BWI
-
LGW
10h 15m
1 stop
$549Icelandair
Tue, Feb 24 - Tue, Mar 3
SWISS Logo
6:40 pm - 2:35 pm
LGW
-
IAD
24h 55m
2 stops
SWISS Logo
5:45 pm - 5:50 pm
IAD
-
LGW
19h 05m
1 stop
$586SWISS
Wed, Feb 25 - Wed, Mar 4
Iberia Logo
11:45 am - 10:35 pm
LGW
-
DCA
15h 50m
2 stops
Iberia Logo
3:21 pm - 7:00 pm
DCA
-
LGW
22h 39m
2 stops
$600Iberia
Thu, Feb 19 - Thu, Feb 26
Finnair Logo
12:20 pm - 12:59 pm
LGW
-
DCA
29h 39m
1 stop
Finnair Logo
7:29 am - 8:40 am
DCA
-
LGW
20h 11m
1 stop
$606Finnair
Wed, Apr 22 - Sun, Apr 26

Delta flights from London Gatwick Airport to Washington, D.C.

Our best Delta deals on London Gatwick Airport to Washington, D.C. flight tickets
Delta
Jul 2
LGW10:25 amLondon Gatwick
14h 10m
1 stop
IAD7:35 pmWashington, D.C. Dulles Intl
Aug 17
IAD6:15 pmWashington, D.C. Dulles Intl
10h 25m
1 stop
LGW9:40 amLondon Gatwick
$682
Delta
Apr 8
LGW10:25 amLondon Gatwick
17h 12m
2 stops
DCA10:37 pmWashington, D.C. Reagan-National
Apr 22
DCA11:00 amWashington, D.C. Reagan-National
17h 25m
2 stops
LGW9:25 amLondon Gatwick
$706

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

Our best Iberia deals on London Gatwick Airport to Washington, D.C. flight tickets
Iberia
Feb 19
LGW11:45 amLondon Gatwick
15h 50m
2 stops
DCA10:35 pmWashington, D.C. Reagan-National
Feb 26
DCA3:21 pmWashington, D.C. Reagan-National
22h 39m
2 stops
LGW7:00 pmLondon Gatwick
$600
Iberia
Mar 2
LGW7:40 pmLondon Gatwick
25h 50m
1 stop
IAD4:30 pmWashington, D.C. Dulles Intl
Mar 10
IAD7:00 pmWashington, D.C. Dulles Intl
11h 50m
1 stop
LGW10:50 amLondon Gatwick
$628
Iberia
Apr 24
LGW8:40 pmLondon Gatwick
23h 50m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
May 2
IAD5:00 pmWashington, D.C. Dulles Intl
22h 00m
1 stop
LGW8:00 pmLondon Gatwick
$653

momondo Fare Finder

 
Customize your flight search to find flights from London Gatwick Airport to Washington, D.C. 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 January 29, 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 3/5

2:00 pm-10:53 pm

1 stop13h 53m

Baltimore/Washington

Sun 3/22

9:15 pm-10:00 am

1 stop32h 45m

$537

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 2/27

10:40 am-9:00 pm

1 stop15h 20m

Washington, D.C. Dulles Intl

Tue 3/3

5:30 pm-9:50 am

1 stop11h 20m

$543

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 5/22

3:40 pm-10:15 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Sun 5/31

11:20 pm-2:40 pm

1 stop10h 20m

$544

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 2/18

11:55 am-6:30 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Sat 2/28

7:40 pm-10:55 am

1 stop10h 15m

$545

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Mon 3/2

2:00 pm-11:17 am

1 stop26h 17m

Baltimore/Washington

Wed 3/4

8:25 pm-10:00 am

1 stop32h 35m

$545

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 4/29

3:40 pm-7:20 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Sun 5/10

8:30 pm-2:40 pm

1 stop13h 10m

$549

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Tue 2/24

11:55 am-6:40 pm

1 stop11h 45m

Baltimore/Washington

Tue 3/3

7:40 pm-10:55 am

1 stop10h 15m

$549

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 2/25

6:40 pm-2:35 pm

2 stops24h 55m

Washington, D.C. Dulles Intl

Wed 3/4

5:45 pm-5:50 pm

1 stop19h 05m

$586

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 2/19

11:45 am-10:35 pm

2 stops15h 50m

Washington, D.C. Reagan-National

Thu 2/26

3:21 pm-7:00 pm

2 stops22h 39m

$600

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 4/22

12:20 pm-12:59 pm

1 stop29h 39m

Washington, D.C. Reagan-National

Sun 4/26

7:29 am-8:40 am

1 stop20h 11m

$606

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.

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 Washington, D.C.?

The month of January is, on average, the cheapest month to fly to Washington, D.C. from London Gatwick Airport, with most prices found around $462. If you’re not able to fly to Washington, D.C. in January, then April is your next best option. Flight prices from London Gatwick Airport to Washington, D.C. during April average around $550.

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

On average, the least expensive day to fly to Washington, D.C. from London Gatwick Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $744. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from London Gatwick Airport to Washington, D.C. for around $904.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from London Gatwick Airport to Washington, D.C. when you can find flight prices for as low as $818. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $851. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Are you open to changing your travel dates? Check out the ideal times to fly from London Gatwick Airport to Washington, D.C. 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. (LGW to WAS) flight deals and tips

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

Fastest flight time

11h 20m

Direct flights

None
The fastest flight from London Gatwick Airport to Washington, D.C. takes 11h 20m
There are no direct flights from London Gatwick Airport to Washington, D.C.. There are no popular flight routes from London Gatwick Airport to Washington, D.C..
Search flight deals

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

    London Gatwick and Washington, D.C. are 3667.7 mi apart from one another. In terms of flight time, this usually takes a little over 11h 20m.

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

    Prices for flights from London Gatwick Airport to Washington, D.C. are refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Gatwick Airport to Washington, D.C..

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

    The required travel and health documents for your Washington, D.C. 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 Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
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 offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Washington, D.C..

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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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport