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.

£144 Cheap Flights from Washington, D.C. to London Gatwick Airport in 2025/26

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Enter your travel dates to find the best prices.

22:30 - 15:45

IAD

LGW

12h 15m1 stop

10:40 - 21:00

LGW

IAD

15h 20m1 stop

£432TAP AIR PORTUGAL

Fri, 16 Jan - Wed, 21 Jan

19:40 - 17:15

IAD

LGW

16h 35m2 stops

08:50 - 18:30

LGW

IAD

14h 40m2 stops

£433Multiple Airlines

Tue, 6 Jan - Tue, 13 Jan

20:30 - 17:50

IAD

LGW

16h 20m1 stop

18:40 - 15:10

LGW

IAD

25h 30m1 stop

£435SWISS

Thu, 15 Jan - Sun, 18 Jan

20:30 - 17:50

IAD

LGW

16h 20m1 stop

18:40 - 15:10

LGW

IAD

25h 30m1 stop

£436SWISS

Thu, 15 Jan - Mon, 19 Jan

20:30 - 14:40

IAD

LGW

13h 10m1 stop

15:40 - 19:20

LGW

IAD

32h 40m1 stop

£438Icelandair

Thu, 9 Apr - Thu, 23 Apr

19:40 - 10:55

IAD

LGW

10h 15m1 stop

11:55 - 18:30

LGW

IAD

11h 35m1 stop

£438Icelandair

Fri, 20 Feb - Fri, 6 Mar

11:46 - 07:30

DCA

LGW

14h 44m1 stop

11:20 - 23:36

LGW

DCA

17h 16m1 stop

£460British Airways

Tue, 10 Feb - Wed, 18 Feb

11:46 - 07:30

DCA

LGW

14h 44m1 stop

11:20 - 23:25

LGW

DCA

17h 05m1 stop

£461British Airways

Tue, 27 Jan - Tue, 10 Feb

06:30 - 07:30

DCA

LGW

20h 00m1 stop

11:20 - 21:24

LGW

DCA

15h 04m1 stop

£462American Airlines

Thu, 22 Jan - Thu, 29 Jan

10:10 - 07:30

DCA

LGW

16h 20m2 stops

12:30 - 00:34

LGW

DCA

17h 04m2 stops

£465American Airlines

Wed, 21 Jan - Wed, 28 Jan

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

10 Feb

DCA11:46Washington, D.C. Reagan-National

14h 44m

1 stop

LGW07:30London Gatwick

18 Feb

LGW11:20London Gatwick

17h 16m

1 stop

DCA23:36Washington, D.C. Reagan-National

£460

Find similar

British Airways

27 Jan

DCA11:46Washington, D.C. Reagan-National

14h 44m

1 stop

LGW07:30London Gatwick

10 Feb

LGW11:20London Gatwick

17h 05m

1 stop

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

£461

Find similar

British Airways

6 May

DCA15:44Washington, D.C. Reagan-National

13h 56m

1 stop

LGW10:40London Gatwick

20 May

LGW10:45London Gatwick

15h 45m

1 stop

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

£473

Find similar

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

24 Jan

IAD20:30Washington, D.C. Dulles Intl

16h 20m

1 stop

LGW17:50London Gatwick

31 Jan

LGW18:40London Gatwick

25h 50m

1 stop

IAD15:30Washington, D.C. Dulles Intl

£435

Find similar

SWISS

15 Jan

IAD20:30Washington, D.C. Dulles Intl

16h 20m

1 stop

LGW17:50London Gatwick

18 Jan

LGW18:40London Gatwick

25h 30m

1 stop

IAD15:10Washington, D.C. Dulles Intl

£436

Find similar

SWISS

12 Feb

IAD18:10Washington, D.C. Dulles Intl

42h 40m

2 stops

LGW17:50London Gatwick

23 Feb

LGW18:40London Gatwick

25h 25m

1 stop

IAD15:05Washington, D.C. Dulles Intl

£444

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

Fri 16/1

22:30-15:45

1 stop12h 15m

London Gatwick

Wed 21/1

10:40-21:00

1 stop15h 20m

£432

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 6/1

19:40-17:15

2 stops16h 35m

London Gatwick

Tue 13/1

08:50-18:30

2 stops14h 40m

£433

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 15/1

20:30-17:50

1 stop16h 20m

London Gatwick

Sun 18/1

18:40-15:10

1 stop25h 30m

£435

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 15/1

20:30-17:50

1 stop16h 20m

London Gatwick

Mon 19/1

18:40-15:10

1 stop25h 30m

£436

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 9/4

20:30-14:40

1 stop13h 10m

London Gatwick

Thu 23/4

15:40-19:20

1 stop32h 40m

£438

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 20/2

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 6/3

11:55-18:30

1 stop11h 35m

£438

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 10/2

11:46-07:30

1 stop14h 44m

London Gatwick

Wed 18/2

11:20-23:36

1 stop17h 16m

£460

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 27/1

11:46-07:30

1 stop14h 44m

London Gatwick

Tue 10/2

11:20-23:25

1 stop17h 05m

£461

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Thu 22/1

06:30-07:30

1 stop20h 00m

London Gatwick

Thu 29/1

11:20-21:24

1 stop15h 04m

£462

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 21/1

10:10-07:30

2 stops16h 20m

London Gatwick

Wed 28/1

12:30-00:34

2 stops17h 04m

£465

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 £417, 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 £439.

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 £627. 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 £833. 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	9h 50m
Direct flights	None

The fastest flight from Washington, D.C. to London Gatwick Airport takes 9h 50m

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 9h 50m.
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 £557	Free Cancellation	Rating 7.0 588 reviews		Search Icelandair flights

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Canterbury

Southend-on-Sea

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 £144

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 5/2. 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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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

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

Our best SWISS 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.

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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

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