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.

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. are refreshed on a daily basis.

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

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 London Gatwick Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The required travel and health documents for your Washington, D.C. 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 Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$374 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 $772 to $650. The lowest price recently found on this route was $575.

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

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 7:20 pm

LGW

IAD

32h 40m

1 stop

8:30 pm - 2:40 pm

IAD

LGW

13h 10m

1 stop

$575Icelandair

Tue, Oct 6 - Tue, Oct 13

3:40 pm - 7:20 pm

LGW

IAD

32h 40m

1 stop

11:20 pm - 2:40 pm

IAD

LGW

10h 20m

1 stop

$580Icelandair

Thu, Oct 1 - Sun, Oct 4

3:40 pm - 7:20 pm

LGW

IAD

32h 40m

1 stop

8:30 pm - 2:40 pm

IAD

LGW

13h 10m

1 stop

$583Icelandair

Thu, Oct 1 - Thu, Oct 8

3:40 pm - 10:15 pm

LGW

IAD

11h 35m

1 stop

11:20 pm - 2:40 pm

IAD

LGW

10h 20m

1 stop

$585Icelandair

Sun, Oct 4 - Sun, Oct 18

3:40 pm - 10:15 pm

LGW

IAD

11h 35m

1 stop

8:30 pm - 11:45 am

IAD

LGW

10h 15m

1 stop

$586Icelandair

Sun, May 10 - Mon, Jul 6

3:40 pm - 7:20 pm

LGW

IAD

32h 40m

1 stop

8:30 pm - 2:40 pm

IAD

LGW

13h 10m

1 stop

$591Icelandair

Tue, Sep 29 - Tue, Oct 6

12:20 pm - 9:44 pm

LGW

DCA

14h 24m

1 stop

6:45 pm - 9:35 am

DCA

LGW

9h 50m

1 stop

$649JetBlue

Tue, May 26 - Tue, Jun 2

12:20 pm - 7:59 pm

LGW

DCA

12h 39m

1 stop

6:45 pm - 9:35 am

DCA

LGW

9h 50m

1 stop

$667JetBlue

Tue, Jun 2 - Tue, Jun 9

12:20 pm - 7:59 pm

LGW

DCA

12h 39m

1 stop

7:29 am - 9:35 am

DCA

LGW

21h 06m

1 stop

$668JetBlue

Thu, May 28 - Sun, Jun 7

2:00 pm - 4:43 pm

LGW

BWI

31h 43m

1 stop

12:20 pm - 10:00 am

BWI

LGW

16h 40m

1 stop

$672Multiple Airlines

Mon, Sep 14 - Tue, Oct 20

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

Oct 6

LGW3:40 pmLondon Gatwick

32h 40m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

Oct 13

IAD8:30 pmWashington, D.C. Dulles Intl

13h 10m

1 stop

LGW2:40 pmLondon Gatwick

$575

Icelandair

Oct 1

LGW3:40 pmLondon Gatwick

32h 40m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

Oct 4

IAD11:20 pmWashington, D.C. Dulles Intl

10h 20m

1 stop

LGW2:40 pmLondon Gatwick

$580

Icelandair

Oct 1

LGW3:40 pmLondon Gatwick

32h 40m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

Oct 8

IAD8:30 pmWashington, D.C. Dulles Intl

13h 10m

1 stop

LGW2:40 pmLondon Gatwick

$583

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

May 11

LGW10:35 amLondon Gatwick

15h 00m

1 stop

IAD8:35 pmWashington, D.C. Dulles Intl

Jul 8

IAD5:45 pmWashington, D.C. Dulles Intl

15h 15m

1 stop

LGW2:00 pmLondon Gatwick

$790

TAP AIR PORTUGAL

May 9

LGW10:35 amLondon Gatwick

14h 30m

1 stop

IAD8:05 pmWashington, D.C. Dulles Intl

Jul 8

IAD5:45 pmWashington, D.C. Dulles Intl

15h 15m

1 stop

LGW2:00 pmLondon Gatwick

$802

TAP AIR PORTUGAL

May 11

LGW10:35 amLondon Gatwick

15h 00m

1 stop

IAD8:35 pmWashington, D.C. Dulles Intl

Jul 6

IAD10:35 pmWashington, D.C. Dulles Intl

12h 00m

1 stop

LGW3:35 pmLondon Gatwick

$805

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 round-trip

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 10/6

3:40 pm-7:20 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Tue 10/13

8:30 pm-2:40 pm

1 stop13h 10m

$575

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 10/1

3:40 pm-7:20 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Sun 10/4

11:20 pm-2:40 pm

1 stop10h 20m

$580

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 10/1

3:40 pm-7:20 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Thu 10/8

8:30 pm-2:40 pm

1 stop13h 10m

$583

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sun 10/4

3:40 pm-10:15 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Sun 10/18

11:20 pm-2:40 pm

1 stop10h 20m

$585

Quickest round-trip

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sun 5/10

3:40 pm-10:15 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Mon 7/6

8:30 pm-11:45 am

1 stop10h 15m

$586

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 9/29

3:40 pm-7:20 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Tue 10/6

8:30 pm-2:40 pm

1 stop13h 10m

$591

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Tue 5/26

12:20 pm-9:44 pm

1 stop14h 24m

Washington, D.C. Reagan-National

Tue 6/2

6:45 pm-9:35 am

1 stop9h 50m

$649

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Tue 6/2

12:20 pm-7:59 pm

1 stop12h 39m

Washington, D.C. Reagan-National

Tue 6/9

6:45 pm-9:35 am

1 stop9h 50m

$667

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 5/28

12:20 pm-7:59 pm

1 stop12h 39m

Washington, D.C. Reagan-National

Sun 6/7

7:29 am-9:35 am

1 stop21h 06m

$668

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Mon 9/14

2:00 pm-4:43 pm

1 stop31h 43m

Baltimore/Washington

Tue 10/20

12:20 pm-10:00 am

1 stop16h 40m

$672

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 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

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 month of August is, on average, the cheapest month to fly to Washington, D.C. from London Gatwick Airport, with most prices found around $190. If you’re not able to fly to Washington, D.C. in August, then March is your next best option. Flight prices from London Gatwick Airport to Washington, D.C. during March average around $383.

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 $756. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from London Gatwick Airport to Washington, D.C. for around $864.

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

At noon 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 $796. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $816. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 round-trip 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?
London Gatwick and Washington, D.C. are 3667.7 mi apart from one another. In terms of flight time, this usually takes a little over 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. are refreshed on a daily basis.
How old do you have to be to fly from London Gatwick Airport to Washington, D.C.?
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 London Gatwick Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The required travel and health documents for your Washington, D.C. 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 Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Fredericksburg

Silver Spring

Rockville

Manassas

Linthicum Heights

Tysons

Bethesda

Springfield

Fairfax

College Park

Why use momondo?

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

It is quick and easy to find London to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

All flight searches from London to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Washington, D.C..

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

Price alerts on flights to Washington, D.C. from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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 $374

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

Cheap round-trip 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.?

What is the cheapest airline that flies from London Gatwick 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.

Traveling 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, 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 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.

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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