What is the cheapest airline that flies from Washington, D.C. to London Gatwick?

TAP AIR PORTUGAL, Icelandair, and British Airways are the most popular carriers operating from Washington, D.C. to London Gatwick

How long does it take to fly to London Gatwick Airport?

On average, it takes 7h 05m to fly from Washington, D.C. to London Gatwick Airport if you fly out of Baltimore (the most popular airport in Washington, D.C.) and into London Heathrow Airport (the most popular airport in London Gatwick Airport). If you’re flying out of Washington, D.C. and into London Heathrow Airport, then the flight time is around 8h 12m.

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

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

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

As of December 2025, there is 1 operator available to choose from for flights from Washington, D.C. to London Gatwick Airport.

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

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 Washington, D.C. to London Gatwick Airport.

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

The travel and health documents you'll need for your trip to London Gatwick Airport 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 London Gatwick Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£138 Cheap Flights from Washington, D.C. to London Gatwick Airport in 2025/26

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22:30 - 15:45

IAD

LGW

12h 15m1 stop

11:00 - 14:35

LGW

IAD

32h 35m2 stops

£427TAP AIR PORTUGAL

Sun, 8 Feb - Mon, 16 Feb

22:30 - 08:35

IAD

LGW

29h 05m2 stops

14:00 - 07:20

LGW

IAD

22h 20m1 stop

£429Multiple Airlines

Sun, 15 Feb - Thu, 19 Feb

19:40 - 10:55

IAD

LGW

10h 15m1 stop

11:55 - 18:30

LGW

IAD

11h 35m1 stop

£430Icelandair

Sun, 11 Jan - Tue, 20 Jan

19:40 - 10:55

IAD

LGW

10h 15m1 stop

11:55 - 18:30

LGW

IAD

11h 35m1 stop

£430Icelandair

Sun, 11 Jan - Tue, 20 Jan

22:30 - 09:50

IAD

LGW

30h 20m1 stop

09:05 - 21:00

LGW

IAD

16h 55m2 stops

£431TAP AIR PORTUGAL

Wed, 28 Jan - Sun, 1 Feb

19:40 - 10:55

IAD

LGW

10h 15m1 stop

11:55 - 18:30

LGW

IAD

11h 35m1 stop

£432Icelandair

Thu, 8 Jan - Mon, 12 Jan

17:25 - 17:50

IAD

LGW

19h 25m1 stop

18:40 - 15:10

LGW

IAD

25h 30m1 stop

£433SWISS

Wed, 14 Jan - Wed, 21 Jan

08:20 - 07:30

DCA

LGW

18h 10m1 stop

11:20 - 23:25

LGW

DCA

17h 05m1 stop

£458British Airways

Wed, 21 Jan - Tue, 27 Jan

10:10 - 07:30

DCA

LGW

16h 20m2 stops

11:20 - 00:34

LGW

DCA

18h 14m2 stops

£463American Airlines

Wed, 28 Jan - Wed, 4 Feb

08:00 - 07:30

DCA

LGW

18h 30m1 stop

10:45 - 21:30

LGW

DCA

15h 45m1 stop

£470British Airways

Tue, 17 Feb - Tue, 28 Apr

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

Our best SWISS deals on Washington, D.C. to London Gatwick Airport flight tickets

SWISS

14 Jan

IAD17:25Washington, D.C. Dulles Intl

19h 25m

1 stop

LGW17:50London Gatwick

21 Jan

LGW18:40London Gatwick

25h 30m

1 stop

IAD15:10Washington, D.C. Dulles Intl

£433

Find similar

SWISS

26 Feb

IAD17:45Washington, D.C. Dulles Intl

19h 05m

1 stop

LGW17:50London Gatwick

12 Mar

LGW18:40London Gatwick

24h 45m

1 stop

IAD15:25Washington, D.C. Dulles Intl

£441

Find similar

SWISS

13 Jan

IAD20:30Washington, D.C. Dulles Intl

16h 20m

1 stop

LGW17:50London Gatwick

20 Jan

LGW18:40London Gatwick

25h 30m

1 stop

IAD15:10Washington, D.C. Dulles Intl

£448

Find similar

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

Our best British Airways deals on Washington, D.C. to London Gatwick Airport flight tickets

British Airways

21 Jan

DCA08:20Washington, D.C. Reagan-National

18h 10m

1 stop

LGW07:30London Gatwick

27 Jan

LGW11:20London Gatwick

17h 05m

1 stop

DCA23:25Washington, D.C. Reagan-National

£458

Find similar

British Airways

17 Feb

DCA08:00Washington, D.C. Reagan-National

18h 30m

1 stop

LGW07:30London Gatwick

28 Apr

LGW10:45London Gatwick

15h 45m

1 stop

DCA21:30Washington, D.C. Reagan-National

£470

Find similar

British Airways

11 Jan

DCA08:20Washington, D.C. Reagan-National

18h 10m

1 stop

LGW07:30London Gatwick

21 Jan

LGW11:20London Gatwick

17h 05m

1 stop

DCA23:25Washington, D.C. Reagan-National

£486

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. 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

Sun 8/2

22:30-15:45

1 stop12h 15m

London Gatwick

Mon 16/2

11:00-14:35

2 stops32h 35m

£427

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 15/2

22:30-08:35

2 stops29h 05m

London Gatwick

Thu 19/2

14:00-07:20

1 stop22h 20m

£429

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 11/1

19:40-10:55

1 stop10h 15m

London Gatwick

Tue 20/1

11:55-18:30

1 stop11h 35m

£430

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 11/1

19:40-10:55

1 stop10h 15m

London Gatwick

Tue 20/1

11:55-18:30

1 stop11h 35m

£430

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 28/1

22:30-09:50

1 stop30h 20m

London Gatwick

Sun 1/2

09:05-21:00

2 stops16h 55m

£431

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 8/1

19:40-10:55

1 stop10h 15m

London Gatwick

Mon 12/1

11:55-18:30

1 stop11h 35m

£432

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 14/1

17:25-17:50

1 stop19h 25m

London Gatwick

Wed 21/1

18:40-15:10

1 stop25h 30m

£433

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 21/1

08:20-07:30

1 stop18h 10m

London Gatwick

Tue 27/1

11:20-23:25

1 stop17h 05m

£458

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 28/1

10:10-07:30

2 stops16h 20m

London Gatwick

Wed 4/2

11:20-00:34

2 stops18h 14m

£463

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 17/2

08:00-07:30

1 stop18h 30m

London Gatwick

Tue 28/4

10:45-21:30

1 stop15h 45m

£470

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. 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

Prices

Airlines

Other information

What is the cheapest month to fly to London Gatwick Airport?

The cheapest month to fly to London Gatwick Airport from Washington, D.C. is in January. Flight prices, which tend to average around £415, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in January, then you should wait until November to fly from Washington, D.C., when ticket prices are also cheap, with an average price of £436.

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

According to our data, Thursday is the cheapest day to fly to London Gatwick Airport from Washington, D.C.. The lowest ticket price found for a Thursday departure recently was £623. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. to London Gatwick Airport on a Saturday will generally be more expensive and average around £828. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

You could potentially save up to 45% on your flight if you consider stops on a Washington, D.C. to London Gatwick Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to London Gatwick Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Washington, D.C. to London Gatwick Airport (WAS to LGW) flight deals and tips

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

Fastest flight time	10h 05m
Direct flights	None

The fastest flight from Washington, D.C. to London Gatwick Airport takes 10h 05m

There are no direct flights from Washington, D.C. to London Gatwick Airport. There are no popular flight routes from Washington, D.C. to London Gatwick Airport.

Search flight deals

How far is Washington, D.C. to London Gatwick by plane?
There are 3667.7 mi between Washington, D.C. and London Gatwick. By plane, this route typically takes 10h 05m.
When did momondo last update prices for flights from Washington, D.C. to London Gatwick Airport?
Prices for flights from Washington, D.C. to London Gatwick Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to London Gatwick Airport?
As of December 2025, there is 1 operator available to choose from for flights from Washington, D.C. to London Gatwick Airport.
How old do you have to be to fly from Washington, D.C. to London Gatwick Airport?
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 Washington, D.C. to London Gatwick Airport.
What documentation or ID do you need to fly to London Gatwick Airport?
The travel and health documents you'll need for your trip to London Gatwick Airport 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 London Gatwick Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Compare and see reviews for airlines that fly from Washington, D.C. to London Gatwick Airport with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £554	Free Cancellation	Rating 7.0 591 reviews		Search Icelandair flights

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Hayes

Chelmsford

Dover

Worthing

Colchester

Bedford

Ramsgate

Hounslow

Stansted

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to London . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to London from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington, D.C. to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington, D.C. and alert you when they change.

An easier way to manage your London Gatwick Airport 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.

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Cheap flights from Washington, D.C. to London from £138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to London departing on 2/2. 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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Big names, great deals

Filter for what you want

Filter for what you want

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

Our best SWISS deals on Washington, D.C. to London Gatwick Airport flight tickets

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

Our best British Airways deals on Washington, D.C. to London Gatwick Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to London Gatwick Airport that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Washington, D.C. to London Gatwick Airport

What is the cheapest month to fly to London Gatwick Airport?

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

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

You could potentially save up to 45% on your flight if you consider stops on a Washington, D.C. to London Gatwick Airport flight.

What is the cheapest airline that flies from Washington, D.C. to London Gatwick?

TAP AIR PORTUGAL, Icelandair, and British Airways are the most popular carriers operating from Washington, D.C. to London Gatwick

How long does it take to fly to London Gatwick Airport?

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

Cheap Washington, D.C. to London Gatwick Airport (WAS to LGW) flight deals and tips

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

Fastest flight time

Direct flights

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

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

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

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to London Gatwick Airport with momondo

Travelling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London Gatwick Airport 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo