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Cheap flights from London Gatwick Airport to Washington, D.C. from £227

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 20/2. 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 return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:00 - 11:17
LGW
-
BWI
26h 17m
1 stop
Multiple Airlines Logo
09:26 - 10:00
BWI
-
LGW
19h 34m
1 stop
£389Multiple Airlines
Mon, 23 Feb - Mon, 2 Mar
Icelandair Logo
11:55 - 18:40
LGW
-
BWI
11h 45m
1 stop
Icelandair Logo
20:30 - 14:40
BWI
-
LGW
13h 10m
1 stop
£392Icelandair
Fri, 6 Mar - Fri, 3 Apr
Icelandair Logo
11:55 - 18:40
LGW
-
BWI
11h 45m
1 stop
Icelandair Logo
19:40 - 10:55
BWI
-
LGW
10h 15m
1 stop
£394Icelandair
Tue, 24 Feb - Tue, 3 Mar
Icelandair Logo
11:55 - 18:40
LGW
-
BWI
11h 45m
1 stop
Icelandair Logo
19:40 - 10:55
BWI
-
LGW
10h 15m
1 stop
£395Icelandair
Tue, 24 Feb - Tue, 3 Mar
Multiple Airlines Logo
14:00 - 07:24
LGW
-
IAD
22h 24m
1 stop
Multiple Airlines Logo
14:58 - 10:00
IAD
-
LGW
15h 02m
2 stops
£401Multiple Airlines
Thu, 5 Mar - Mon, 9 Mar
SWISS Logo
18:40 - 16:40
LGW
-
IAD
27h 00m
1 stop
SWISS Logo
20:30 - 17:50
IAD
-
LGW
16h 20m
1 stop
£402SWISS
Wed, 18 Feb - Sat, 28 Feb
SWISS Logo
18:40 - 15:20
LGW
-
IAD
24h 40m
1 stop
SWISS Logo
18:45 - 17:50
IAD
-
LGW
19h 05m
2 stops
£404SWISS
Wed, 11 Mar - Wed, 18 Mar
Iberia Logo
11:45 - 22:35
LGW
-
DCA
15h 50m
2 stops
Iberia Logo
15:21 - 19:00
DCA
-
LGW
22h 39m
2 stops
£432Iberia
Thu, 19 Feb - Thu, 26 Feb
Iberia Logo
11:45 - 22:35
LGW
-
DCA
15h 50m
2 stops
Iberia Logo
15:21 - 19:00
DCA
-
LGW
22h 39m
2 stops
£437Iberia
Thu, 19 Feb - Thu, 26 Feb
Finnair Logo
12:20 - 12:59
LGW
-
DCA
29h 39m
1 stop
Finnair Logo
07:29 - 08:40
DCA
-
LGW
20h 11m
1 stop
£441Finnair
Wed, 22 Apr - Sun, 26 Apr

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

Our best Icelandair deals on London Gatwick Airport to Washington, D.C. flight tickets
Icelandair
6 Mar
LGW11:55London Gatwick
11h 45m
1 stop
BWI18:40Baltimore/Washington
3 Apr
BWI20:30Baltimore/Washington
13h 10m
1 stop
LGW14:40London Gatwick
£392
Icelandair
24 Feb
LGW11:55London Gatwick
11h 45m
1 stop
BWI18:40Baltimore/Washington
3 Mar
BWI19:40Baltimore/Washington
10h 15m
1 stop
LGW10:55London Gatwick
£394
Icelandair
4 Feb
LGW11:55London Gatwick
11h 45m
1 stop
BWI18:40Baltimore/Washington
9 Feb
BWI19:40Baltimore/Washington
10h 15m
1 stop
LGW10:55London Gatwick
£395

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
19 Feb
LGW11:45London Gatwick
15h 50m
2 stops
DCA22:35Washington, D.C. Reagan-National
26 Feb
DCA15:21Washington, D.C. Reagan-National
22h 39m
2 stops
LGW19:00London Gatwick
£432
Iberia
19 Feb
LGW11:45London Gatwick
15h 50m
2 stops
DCA22:35Washington, D.C. Reagan-National
26 Feb
DCA15:21Washington, D.C. Reagan-National
22h 39m
2 stops
LGW19:00London Gatwick
£437
Iberia
4 Feb
LGW19:40London Gatwick
25h 50m
1 stop
IAD16:30Washington, D.C. Dulles Intl
19 Feb
IAD18:00Washington, D.C. Dulles Intl
11h 50m
1 stop
LGW10:50London Gatwick
£453

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 28 January 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

Mon 23/2

14:00-11:17

1 stop26h 17m

Baltimore/Washington

Mon 2/3

09:26-10:00

1 stop19h 34m

£389

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Fri 6/3

11:55-18:40

1 stop11h 45m

Baltimore/Washington

Fri 3/4

20:30-14:40

1 stop13h 10m

£392

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Tue 24/2

11:55-18:40

1 stop11h 45m

Baltimore/Washington

Tue 3/3

19:40-10:55

1 stop10h 15m

£394

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Tue 24/2

11:55-18:40

1 stop11h 45m

Baltimore/Washington

Tue 3/3

19:40-10:55

1 stop10h 15m

£395

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 5/3

14:00-07:24

1 stop22h 24m

Washington, D.C. Dulles Intl

Mon 9/3

14:58-10:00

2 stops15h 02m

£401

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 18/2

18:40-16:40

1 stop27h 00m

Washington, D.C. Dulles Intl

Sat 28/2

20:30-17:50

1 stop16h 20m

£402

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 11/3

18:40-15:20

1 stop24h 40m

Washington, D.C. Dulles Intl

Wed 18/3

18:45-17:50

2 stops19h 05m

£404

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 19/2

11:45-22:35

2 stops15h 50m

Washington, D.C. Reagan-National

Thu 26/2

15:21-19:00

2 stops22h 39m

£432

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 19/2

11:45-22:35

2 stops15h 50m

Washington, D.C. Reagan-National

Thu 26/2

15:21-19:00

2 stops22h 39m

£437

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 22/4

12:20-12:59

1 stop29h 39m

Washington, D.C. Reagan-National

Sun 26/4

07:29-08:40

1 stop20h 11m

£441

Flights are sorted by cheapest return 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 cheapest month to fly to Washington, D.C. from London Gatwick Airport is in January. Flight prices, which tend to average around £336, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in January, then you should wait until April to fly from London Gatwick Airport, when ticket prices are also cheap, with an average price of £400.

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 £571. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from London Gatwick Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £618.

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

At midday 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 £581. Flying to Washington, D.C. at midday is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the morning, with an average ticket price of £584. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on London Gatwick Airport to Washington, D.C. flights?

You could potentially save up to 58% on your flight if you consider stops on a London Gatwick Airport to Washington, D.C. flight.

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 return 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?

    The distance between London Gatwick and Washington, D.C. is about 3667.7 mi. By plane, this route typically takes 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. were last updated today.

  • How many operators does momondo search for flights from London Gatwick Airport to Washington, D.C.?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from London Gatwick Airport to Washington, D.C.

Compare and see reviews for airlines that fly from London Gatwick Airport to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £378Free CancellationRating
7.1
603 reviews
Search Icelandair flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
College Park
Fairfax
Arlington
Linthicum Heights
Alexandria
Glen Burnie
Lutherville Timonium
Ellicott City
Cambridge
Lexington Park
Westminster
Woodbridge
Bethesda
Rockville
Silver Spring
Owings Mills
National Harbor

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Washington, D.C. for you.

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

Yes. All flights to Washington, D.C. from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between London and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of London to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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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