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

SWISS, Delta, and TAP AIR PORTUGAL are the most popular carriers operating from London Gatwick to Washington, D.C.

Which airport is the most popular for stopovers for flights between London Gatwick Airport and Washington, D.C.?

Reykjavik (KEF) was the most common stop: 69% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London Gatwick Airport to Washington, D.C.?

Flights via Reykjavik (KEF) offer the lowest average return price of £513.

Which stopover airport has the shortest travel time from London Gatwick Airport to Washington, D.C.?

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 11h 33m.

Which stopover airport has the shortest connection time from London Gatwick Airport to Washington, D.C.?

Reykjavik (KEF) has the shortest average stopover time for this route: 1h 28m.

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.?

As of May 2026, there is 1 operator available to choose from 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.

£276 Cheap Flights from London Gatwick Airport to Washington, D.C. in 2026

Q: What is the typical price of a round-trip flight between London Gatwick Airport and Washington, D.C.?

Prices are currently low for flights on this route. Typical prices usually range from £570 to £480. The lowest price recently found on this route was £425.

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

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:40 - 19:20

LGW

IAD

32h 40m

1 stop

20:30 - 14:40

IAD

LGW

13h 10m

1 stop

£425Icelandair

Tue, 6 Oct - Tue, 13 Oct

15:40 - 19:20

LGW

IAD

32h 40m

1 stop

23:20 - 14:40

IAD

LGW

10h 20m

1 stop

£429Icelandair

Thu, 1 Oct - Sun, 4 Oct

15:40 - 19:20

LGW

IAD

32h 40m

1 stop

20:30 - 14:40

IAD

LGW

13h 10m

1 stop

£431Icelandair

Thu, 1 Oct - Thu, 8 Oct

15:40 - 22:15

LGW

IAD

11h 35m

1 stop

23:20 - 14:40

IAD

LGW

10h 20m

1 stop

£432Icelandair

Sun, 4 Oct - Sun, 18 Oct

13:00 - 19:20

LGW

IAD

11h 20m

1 stop

20:30 - 11:45

IAD

LGW

10h 15m

1 stop

£433Icelandair

Tue, 12 May - Mon, 6 Jul

15:40 - 22:15

LGW

IAD

11h 35m

1 stop

20:30 - 14:40

IAD

LGW

13h 10m

1 stop

£436Icelandair

Wed, 7 Oct - Mon, 12 Oct

12:20 - 21:44

LGW

DCA

14h 24m

1 stop

18:45 - 09:35

DCA

LGW

9h 50m

1 stop

£480JetBlue

Tue, 26 May - Tue, 2 Jun

12:20 - 21:44

LGW

DCA

14h 24m

1 stop

14:55 - 09:35

DCA

LGW

13h 40m

1 stop

£492JetBlue

Mon, 1 Jun - Tue, 9 Jun

12:20 - 21:44

LGW

DCA

14h 24m

1 stop

21:00 - 09:35

DCA

LGW

31h 35m

1 stop

£493JetBlue

Thu, 4 Jun - Sat, 6 Jun

14:00 - 16:43

LGW

BWI

31h 43m

1 stop

12:20 - 10:00

BWI

LGW

16h 40m

1 stop

£497Multiple Airlines

Mon, 14 Sep - Tue, 20 Oct

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 Oct

LGW15:40London Gatwick

32h 40m

1 stop

IAD19:20Washington, D.C. Dulles Intl

13 Oct

IAD20:30Washington, D.C. Dulles Intl

13h 10m

1 stop

LGW14:40London Gatwick

£425

Icelandair

1 Oct

LGW15:40London Gatwick

32h 40m

1 stop

IAD19:20Washington, D.C. Dulles Intl

4 Oct

IAD23:20Washington, D.C. Dulles Intl

10h 20m

1 stop

LGW14:40London Gatwick

£429

Icelandair

1 Oct

LGW15:40London Gatwick

32h 40m

1 stop

IAD19:20Washington, D.C. Dulles Intl

8 Oct

IAD20:30Washington, D.C. Dulles Intl

13h 10m

1 stop

LGW14:40London Gatwick

£431

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

9 May

LGW10:35London Gatwick

14h 30m

1 stop

IAD20:05Washington, D.C. Dulles Intl

8 Jul

IAD17:45Washington, D.C. Dulles Intl

15h 15m

1 stop

LGW14:00London Gatwick

£593

TAP AIR PORTUGAL

11 May

LGW10:35London Gatwick

15h 00m

1 stop

IAD20:35Washington, D.C. Dulles Intl

6 Jul

IAD22:35Washington, D.C. Dulles Intl

12h 00m

1 stop

LGW15:35London Gatwick

£595

momondo Fare Finder

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

Cheapest return flight

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 6/10

15:40-19:20

1 stop32h 40m

Washington, D.C. Dulles Intl

Tue 13/10

20:30-14:40

1 stop13h 10m

£425

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 1/10

15:40-19:20

1 stop32h 40m

Washington, D.C. Dulles Intl

Sun 4/10

23:20-14:40

1 stop10h 20m

£429

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 1/10

15:40-19:20

1 stop32h 40m

Washington, D.C. Dulles Intl

Thu 8/10

20:30-14:40

1 stop13h 10m

£431

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sun 4/10

15:40-22:15

1 stop11h 35m

Washington, D.C. Dulles Intl

Sun 18/10

23:20-14:40

1 stop10h 20m

£432

Fastest return journey

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 12/5

13:00-19:20

1 stop11h 20m

Washington, D.C. Dulles Intl

Mon 6/7

20:30-11:45

1 stop10h 15m

£433

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 7/10

15:40-22:15

1 stop11h 35m

Washington, D.C. Dulles Intl

Mon 12/10

20:30-14:40

1 stop13h 10m

£436

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Tue 26/5

12:20-21:44

1 stop14h 24m

Washington, D.C. Reagan-National

Tue 2/6

18:45-09:35

1 stop9h 50m

£480

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Mon 1/6

12:20-21:44

1 stop14h 24m

Washington, D.C. Reagan-National

Tue 9/6

14:55-09:35

1 stop13h 40m

£492

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 4/6

12:20-21:44

1 stop14h 24m

Washington, D.C. Reagan-National

Sat 6/6

21:00-09:35

1 stop31h 35m

£493

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Mon 14/9

14:00-16:43

1 stop31h 43m

Baltimore/Washington

Tue 20/10

12:20-10:00

1 stop16h 40m

£497

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 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

Prices

Airlines

Stopovers

What is the typical price of a round-trip flight between London Gatwick Airport and Washington, D.C.?

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 August. Flight prices, which tend to average around £140, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in August, then you should wait until March to fly from London Gatwick Airport, when ticket prices are also cheap, with an average price of £283.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as £568. 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 £612.

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 £561. 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 £585. 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 38% 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 25m
Direct flights	None

The fastest flight from London Gatwick Airport to Washington, D.C. takes 11h 25m

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

Frequently asked questions about flying from London Gatwick Airport to Washington, D.C.

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 25m.
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.?
As of May 2026, there is 1 operator available to choose from 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.?
momondo data reveals that the most frequently booked airline on the route from London Gatwick Airport to Washington, D.C. is Icelandair, representing 100% of all bookings.

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
Icelandair	PriceFrom £371	Free Cancellation	Rating 7.0 646 reviews		Search Icelandair flights

College Park

Alexandria

Fairfax

Arlington

Gettysburg

Linthicum Heights

Glen Burnie

Laurel

Lutherville Timonium

Ellicott City

Cambridge

Westminster

Lexington Park

Woodbridge

Bethesda

Owings Mills

Silver Spring

Rockville

Landover

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

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

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from London Gatwick Airport to Washington, D.C. from £276

Big names, great deals

Big names, great deals

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Filter for what you want

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

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

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

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

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

momondo Fare Finder

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

See travel insights to Washington, D.C. from

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

What is the typical price of a round-trip flight between London Gatwick Airport and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

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

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

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

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

Which airport is the most popular for stopovers for flights between London Gatwick Airport and Washington, D.C.?

Which stopover airport offers the lowest fares from London Gatwick Airport to Washington, D.C.?

Which stopover airport has the shortest travel time from London Gatwick Airport to Washington, D.C.?

Which stopover airport has the shortest connection time from London Gatwick Airport to Washington, D.C.?

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

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

Direct flights

Frequently asked questions about flying 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

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

Why use momondo?

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.

Get notified when prices go down

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

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.

Fly your favourite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

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

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According to popular flight searches on momondo this year

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