Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Gatwick Airport to Washington, D.C. from £214

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.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Gatwick Airport to Washington, D.C.

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
11:55 - 18:40
LGW
-
BWI
11h 45m
1 stop
Icelandair Logo
19:40 - 10:55
BWI
-
LGW
10h 15m
1 stop
£400Icelandair
Mon, 2 Feb - Fri, 6 Feb
Icelandair Logo
11:55 - 18:40
LGW
-
BWI
11h 45m
1 stop
Icelandair Logo
19:40 - 10:55
BWI
-
LGW
10h 15m
1 stop
£400Icelandair
Wed, 4 Feb - Sun, 8 Feb
Multiple Airlines Logo
14:00 - 14:24
LGW
-
BWI
28h 24m
2 stops
Multiple Airlines Logo
09:36 - 10:00
BWI
-
LGW
20h 24m
1 stop
£403Multiple Airlines
Thu, 12 Mar - Thu, 26 Mar
TAP AIR PORTUGAL Logo
16:35 - 21:00
LGW
-
IAD
33h 25m
1 stop
TAP AIR PORTUGAL Logo
23:30 - 09:50
IAD
-
LGW
30h 20m
1 stop
£413TAP AIR PORTUGAL
Tue, 24 Feb - Sun, 8 Mar
SWISS Logo
18:40 - 15:20
LGW
-
IAD
24h 40m
1 stop
SWISS Logo
21:30 - 17:50
IAD
-
LGW
16h 20m
1 stop
£415SWISS
Sun, 15 Mar - Sun, 22 Mar
TAP AIR PORTUGAL Logo
10:40 - 15:15
LGW
-
IAD
33h 35m
1 stop
TAP AIR PORTUGAL Logo
23:30 - 09:50
IAD
-
LGW
30h 20m
1 stop
£415TAP AIR PORTUGAL
Sun, 1 Mar - Sun, 8 Mar
SWISS Logo
18:40 - 14:20
LGW
-
IAD
24h 40m
1 stop
SWISS Logo
21:30 - 17:50
IAD
-
LGW
16h 20m
1 stop
£419SWISS
Sat, 7 Mar - Sat, 14 Mar
Multiple Airlines Logo
14:05 - 18:30
LGW
-
IAD
33h 25m
3 stops
Multiple Airlines Logo
19:40 - 16:20
IAD
-
LGW
15h 40m
2 stops
£428Multiple Airlines
Thu, 26 Feb - Sun, 1 Mar
British Airways Logo
14:00 - 23:34
LGW
-
DCA
14h 34m
1 stop
British Airways Logo
10:31 - 06:50
DCA
-
LGW
15h 19m
1 stop
£443British Airways
Mon, 18 May - Wed, 27 May
British Airways Logo
11:20 - 23:42
LGW
-
DCA
17h 22m
1 stop
British Airways Logo
14:33 - 07:30
DCA
-
LGW
12h 57m
1 stop
£447British Airways
Wed, 25 Feb - Sat, 21 Mar

TAP AIR PORTUGAL flights from London Gatwick Airport to Washington, D.C.

Our best TAP AIR PORTUGAL deals on London Gatwick Airport to Washington, D.C. flight tickets
TAP AIR PORTUGAL
24 Feb
LGW16:35London Gatwick
33h 25m
1 stop
IAD21:00Washington, D.C. Dulles Intl
8 Mar
IAD23:30Washington, D.C. Dulles Intl
30h 20m
1 stop
LGW09:50London Gatwick
£413
TAP AIR PORTUGAL
1 Mar
LGW10:40London Gatwick
33h 35m
1 stop
IAD15:15Washington, D.C. Dulles Intl
8 Mar
IAD23:30Washington, D.C. Dulles Intl
30h 20m
1 stop
LGW09:50London Gatwick
£415
TAP AIR PORTUGAL
9 Mar
LGW16:35London Gatwick
27h 00m
1 stop
IAD15:35Washington, D.C. Dulles Intl
18 Mar
IAD23:30Washington, D.C. Dulles Intl
30h 20m
1 stop
LGW09:50London Gatwick
£469

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

Our best SWISS deals on London Gatwick Airport to Washington, D.C. flight tickets
SWISS
15 Mar
LGW18:40London Gatwick
24h 40m
1 stop
IAD15:20Washington, D.C. Dulles Intl
22 Mar
IAD21:30Washington, D.C. Dulles Intl
16h 20m
1 stop
LGW17:50London Gatwick
£415
SWISS
7 Mar
LGW18:40London Gatwick
24h 40m
1 stop
IAD14:20Washington, D.C. Dulles Intl
14 Mar
IAD21:30Washington, D.C. Dulles Intl
16h 20m
1 stop
LGW17:50London Gatwick
£419
SWISS
16 Feb
LGW18:40London Gatwick
27h 00m
1 stop
IAD16:40Washington, D.C. Dulles Intl
24 Feb
IAD17:45Washington, D.C. Dulles Intl
19h 05m
1 stop
LGW17:50London Gatwick
£420

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 16 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 2/2

11:55-18:40

1 stop11h 45m

Baltimore/Washington

Fri 6/2

19:40-10:55

1 stop10h 15m

£400

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Wed 4/2

11:55-18:40

1 stop11h 45m

Baltimore/Washington

Sun 8/2

19:40-10:55

1 stop10h 15m

£400

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 12/3

14:00-14:24

2 stops28h 24m

Baltimore/Washington

Thu 26/3

09:36-10:00

1 stop20h 24m

£403

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 24/2

16:35-21:00

1 stop33h 25m

Washington, D.C. Dulles Intl

Sun 8/3

23:30-09:50

1 stop30h 20m

£413

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sun 15/3

18:40-15:20

1 stop24h 40m

Washington, D.C. Dulles Intl

Sun 22/3

21:30-17:50

1 stop16h 20m

£415

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sun 1/3

10:40-15:15

1 stop33h 35m

Washington, D.C. Dulles Intl

Sun 8/3

23:30-09:50

1 stop30h 20m

£415

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 7/3

18:40-14:20

1 stop24h 40m

Washington, D.C. Dulles Intl

Sat 14/3

21:30-17:50

1 stop16h 20m

£419

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 26/2

14:05-18:30

3 stops33h 25m

Washington, D.C. Dulles Intl

Sun 1/3

19:40-16:20

2 stops15h 40m

£428

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Mon 18/5

14:00-23:34

1 stop14h 34m

Washington, D.C. Reagan-National

Wed 27/5

10:31-06:50

1 stop15h 19m

£443

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 25/2

11:20-23:42

1 stop17h 22m

Washington, D.C. Reagan-National

Sat 21/3

14:33-07:30

1 stop12h 57m

£447

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 £345, 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 £412.

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 £587. 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 £636.

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 £594. 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 afternoon, with an average ticket price of £603. Departure times in the afternoon 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 £346Free CancellationRating
7.1
596 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
Alexandria
Fairfax
Arlington
Linthicum Heights
Bethesda
Glen Burnie
Lutherville Timonium
Ellicott City
Cambridge
Westminster
Woodbridge
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.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 15/2
Sun 22/2
By creating a price alert you accept our terms of use and privacy policy.

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