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

Reykjavik (KEF) was the most common stop: 76% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Lisbon (LIS) offer the lowest average round-trip price of $445.

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

Reykjavik (KEF) has the shortest average layover time for this route: 1h 24m.

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

TAP AIR PORTUGAL is the most popular carrier 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 35m.

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

Flights connecting via New York (JFK) have the shortest average one-way travel time: 9h 07m.

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 were last updated today.

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

As of September 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?

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 Washington, D.C. to London Gatwick Airport.

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

The required travel and health documents for your London Gatwick Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Gatwick Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$183 Cheap Flights from Washington, D.C. to London Gatwick Airport in 2025/26

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Round-trip

One-way

Last minute

Cheap round-trip flights

11:15 pm - 2:35 pmIAD-LGW

10h 20m1 stop

3:40 pm - 7:20 pmLGW-IAD

32h 40m1 stop

$491Icelandair

Find Deal

sáb., oct. 4 - mar., oct. 14

8:30 pm - 2:40 pmIAD-LGW

13h 10m1 stop

3:40 pm - 10:10 pmLGW-IAD

11h 30m1 stop

$492Icelandair

Find Deal

mié., oct. 1 - sáb., oct. 11

8:40 pm - 7:30 pmIAD-LGW

18h 50m2 stops

8:50 am - 6:30 pmLGW-IAD

14h 40m2 stops

$499

Find Deal

mar., oct. 28 - mar., nov. 4

8:40 pm - 7:30 pmIAD-LGW

18h 50m2 stops

8:50 am - 6:30 pmLGW-IAD

14h 40m2 stops

$501

Find Deal

mar., oct. 28 - mar., nov. 4

5:50 pm - 8:30 pmIAD-LGW

21h 40m2 stops

4:25 pm - 3:20 pmLGW-IAD

27h 55m1 stop

$509TAP AIR PORTUGAL

Find Deal

mié., oct. 15 - mar., oct. 21

5:00 pm - 8:25 pmIAD-LGW

22h 25m2 stops

4:25 pm - 3:20 pmLGW-IAD

27h 55m1 stop

$512TAP AIR PORTUGAL

Find Deal

mar., oct. 14 - mar., oct. 21

2:55 pm - 8:10 amDCA-LGW

12h 15m1 stop

3:05 pm - 10:57 pmLGW-DCA

12h 52m1 stop

$559American Airlines

Find Deal

mié., oct. 8 - mié., oct. 15

8:19 am - 7:30 amDCA-LGW

18h 11m1 stop

11:20 am - 11:34 pmLGW-DCA

17h 14m2 stops

$564American Airlines

Find Deal

lun., nov. 10 - mar., nov. 18

3:35 pm - 8:10 amDCA-LGW

11h 35m1 stop

3:05 pm - 10:57 pmLGW-DCA

12h 52m1 stop

$682British Airways

Find Deal

vie., oct. 3 - lun., oct. 6

7:23 pm - 8:10 amDCA-LGW

31h 47m1 stop

3:05 pm - 11:07 pmLGW-DCA

13h 02m1 stop

$715British Airways

Find Deal

vie., sep. 26 - sáb., oct. 4

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

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

Icelandair

Oct 4

IAD11:15 pmWashington, D.C. Dulles Intl

10h 20m

1 stop

LGW2:35 pmLondon Gatwick

Oct 14

LGW3:40 pmLondon Gatwick

32h 40m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

$491

Find similar

Icelandair

Oct 1

IAD8:30 pmWashington, D.C. Dulles Intl

13h 10m

1 stop

LGW2:40 pmLondon Gatwick

Oct 11

LGW3:40 pmLondon Gatwick

11h 30m

1 stop

IAD10:10 pmWashington, D.C. Dulles Intl

$492

Find similar

Icelandair

Oct 13

IAD8:30 pmWashington, D.C. Dulles Intl

13h 05m

1 stop

LGW2:35 pmLondon Gatwick

Dec 3

LGW11:55 amLondon Gatwick

11h 35m

1 stop

IAD6:30 pmWashington, D.C. Dulles Intl

$493

Find similar

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

Our best TAP AIR PORTUGAL deals on Washington, D.C. to London Gatwick Airport flight tickets

TAP AIR PORTUGAL

Oct 15

IAD5:50 pmWashington, D.C. Dulles Intl

21h 40m

2 stops

LGW8:30 pmLondon Gatwick

Oct 21

LGW4:25 pmLondon Gatwick

27h 55m

1 stop

IAD3:20 pmWashington, D.C. Dulles Intl

$509

Find similar

TAP AIR PORTUGAL

Oct 14

IAD5:00 pmWashington, D.C. Dulles Intl

22h 25m

2 stops

LGW8:25 pmLondon Gatwick

Oct 21

LGW4:25 pmLondon Gatwick

27h 55m

1 stop

IAD3:20 pmWashington, D.C. Dulles Intl

$512

Find similar

TAP AIR PORTUGAL

Nov 30

IAD10:30 pmWashington, D.C. Dulles Intl

17h 05m

2 stops

LGW8:35 pmLondon Gatwick

Dec 10

LGW4:35 pmLondon Gatwick

27h 40m

1 stop

IAD3:15 pmWashington, D.C. Dulles Intl

$514

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

sáb. 10/4

11:15 pm-2:35 pm

1 stop10h 20m

London Gatwick

mar. 10/14

3:40 pm-7:20 pm

1 stop32h 40m

$491

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

mié. 10/1

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

sáb. 10/11

3:40 pm-10:10 pm

1 stop11h 30m

$492

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

mar. 10/28

8:40 pm-7:30 pm

2 stops18h 50m

London Gatwick

mar. 11/4

8:50 am-6:30 pm

2 stops14h 40m

$499

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

mar. 10/28

8:40 pm-7:30 pm

2 stops18h 50m

London Gatwick

mar. 11/4

8:50 am-6:30 pm

2 stops14h 40m

$501

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

mié. 10/15

5:50 pm-8:30 pm

2 stops21h 40m

London Gatwick

mar. 10/21

4:25 pm-3:20 pm

1 stop27h 55m

$509

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

mar. 10/14

5:00 pm-8:25 pm

2 stops22h 25m

London Gatwick

mar. 10/21

4:25 pm-3:20 pm

1 stop27h 55m

$512

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

mié. 10/8

2:55 pm-8:10 am

1 stop12h 15m

London Gatwick

mié. 10/15

3:05 pm-10:57 pm

1 stop12h 52m

$559

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

lun. 11/10

8:19 am-7:30 am

1 stop18h 11m

London Gatwick

mar. 11/18

11:20 am-11:34 pm

2 stops17h 14m

$564

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

vie. 10/3

3:35 pm-8:10 am

1 stop11h 35m

London Gatwick

lun. 10/6

3:05 pm-10:57 pm

1 stop12h 52m

$682

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

vie. 9/26

7:23 pm-8:10 am

1 stop31h 47m

London Gatwick

sáb. 10/4

3:05 pm-11:07 pm

1 stop13h 02m

$715

Flights are sorted by cheapest round-trip 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

Layovers

Other information

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

In general, January is the cheapest month to fly from Washington, D.C. to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $501. If you are unable to visit London Gatwick Airport during the month of January, then departing from Washington, D.C. during the month September is also very affordable. Most momondo users find prices during this month for around $544.

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

The cheapest day to depart from Washington, D.C. to London Gatwick Airport is on a Wednesday when prices can be found for as low as $674. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Saturday is $885.

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

Flying to London Gatwick Airport from Washington, D.C. in the evening is the least expensive time of day to depart. momondo users have found prices as low as $694 when looking at flights departing in the evening. At noon is when there is more demand to fly to London Gatwick Airport, so prices are often more expensive at around $819 per ticket.

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 round-trip 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

Direct flights	None

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?
A flight from Washington, D.C. to London Gatwick will travel around 3667.7 mi. Typically, this will take 9h 36m by plane in normal conditions.
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 were last updated today.
How many operators does momondo search for flights from Washington, D.C. to London Gatwick Airport?
As of September 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?
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 Washington, D.C. to London Gatwick Airport.
What documentation or ID do you need to fly to London Gatwick Airport?
The required travel and health documents for your London Gatwick Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Gatwick Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. to London Gatwick Airport?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to London Gatwick Airport is Icelandair, representing 66% of all bookings. The subsequent popular airlines are American Airlines at 25% and British Airways at 9%.

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 $472	Free Cancellation	Rating 7.0 544 reviews		Search Icelandair flights

Gatwick

Hounslow

Dover

Luton

Slough

Milton Keynes

Hayes

Guildford

Dartford

Crawley

Stansted

Chelmsford

Brentwood

Ilford

Folkestone

Colchester

Watford

Wembley

Richmond

Croydon

Why use momondo?

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

Finding the right flight to London from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to London from Washington, D.C. with this policy.

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

momondo provides multiple filters to help you find the best flight to London from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Washington, D.C. to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Gatwick Airport trip

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Popular cities in the United Kingdom

Flights to London Heathrow Airportfrom $373

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Flights to London Stansted Airportfrom $406

Flights to London Luton Airportfrom $405

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Flights to Belfast Intl Airportfrom $477

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Flights to Belfast City Airportfrom $497

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Cheap flights from Washington, D.C. to London from $183

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 10/6. 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 and deals

Filter for what you want

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

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

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

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

Our best TAP AIR PORTUGAL 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

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?

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

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

TAP AIR PORTUGAL is the most popular carrier operating from Washington, D.C. to London Gatwick

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

Reykjavik (KEF) was the most common stop: 76% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Lisbon (LIS) offer the lowest average round-trip price of $445.

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

Flights connecting via New York (JFK) have the shortest average one-way travel time: 9h 07m.

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

Reykjavik (KEF) has the shortest average layover time for this route: 1h 24m.

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

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?

What is the most popular airline from Washington, D.C. 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

Traveling 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, organize 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