Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Gatwick Airport to Washington, D.C. from £220

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport to Washington, D.C. departing on 23/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
10:45 - 23:15
LGW
-
DCA
17h 30m1 stop
British Airways Logo
11:30 - 06:50
DCA
-
LGW
14h 20m1 stop
£452British Airways
Tue, 12 May - Tue, 19 May
SWISS Logo
18:40 - 14:35
LGW
-
IAD
24h 55m2 stops
SWISS Logo
20:30 - 17:50
IAD
-
LGW
16h 20m1 stop
£461SWISS
Fri, 6 Feb - Sun, 15 Feb
Icelandair Logo
13:00 - 19:25
LGW
-
BWI
11h 25m1 stop
Icelandair Logo
20:30 - 11:45
BWI
-
LGW
10h 15m1 stop
£462Icelandair
Tue, 19 May - Mon, 25 May
TAP AIR PORTUGAL Logo
21:25 - 15:15
LGW
-
IAD
22h 50m2 stops
TAP AIR PORTUGAL Logo
17:30 - 15:50
IAD
-
LGW
17h 20m1 stop
£462TAP AIR PORTUGAL
Fri, 30 Jan - Thu, 5 Feb
Icelandair Logo
11:55 - 18:30
LGW
-
IAD
11h 35m1 stop
Icelandair Logo
19:40 - 10:55
IAD
-
LGW
10h 15m1 stop
£463Icelandair
Tue, 20 Jan - Tue, 27 Jan
Iberia Logo
11:45 - 18:54
LGW
-
DCA
36h 09m2 stops
Iberia Logo
17:45 - 10:50
DCA
-
LGW
36h 05m2 stops
£463Iberia
Thu, 5 Feb - Sun, 8 Feb
Icelandair Logo
15:40 - 19:25
LGW
-
BWI
32h 45m1 stop
Icelandair Logo
23:35 - 14:40
BWI
-
LGW
10h 05m1 stop
£463Icelandair
Wed, 20 May - Tue, 26 May
Multiple Airlines Logo
14:00 - 07:20
LGW
-
IAD
22h 20m1 stop
Multiple Airlines Logo
20:40 - 16:55
IAD
-
LGW
16h 15m2 stops
£464Multiple Airlines
Thu, 26 Feb - Sun, 8 Mar
Multiple Airlines Logo
14:00 - 23:47
LGW
-
BWI
14h 47m1 stop
Multiple Airlines Logo
20:40 - 14:15
BWI
-
LGW
13h 35m2 stops
£464Multiple Airlines
Thu, 29 Jan - Sat, 21 Mar
TAP AIR PORTUGAL Logo
16:35 - 22:00
LGW
-
IAD
33h 25m1 stop
TAP AIR PORTUGAL Logo
18:30 - 20:40
IAD
-
LGW
22h 10m2 stops
£474TAP AIR PORTUGAL
Tue, 10 Mar - Thu, 19 Mar

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
19 May
LGW13:00London Gatwick
11h 25m
1 stop
BWI19:25Baltimore/Washington
26 May
BWI20:30Baltimore/Washington
13h 10m
1 stop
LGW14:40London Gatwick
£462
Find similar
Icelandair
20 Jan
LGW11:55London Gatwick
11h 35m
1 stop
IAD18:30Washington, D.C. Dulles Intl
27 Jan
IAD19:40Washington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55London Gatwick
£463
Find similar
Icelandair
5 Feb
LGW11:55London Gatwick
11h 35m
1 stop
IAD18:30Washington, D.C. Dulles Intl
11 Feb
IAD19:40Washington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55London Gatwick
£465
Find similar

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

Our best SWISS deals on London Gatwick Airport to Washington, D.C. flight tickets
SWISS
6 Feb
LGW18:40London Gatwick
24h 55m
2 stops
IAD14:35Washington, D.C. Dulles Intl
15 Feb
IAD20:30Washington, D.C. Dulles Intl
16h 20m
1 stop
LGW17:50London Gatwick
£461
Find similar
SWISS
19 May
LGW09:25London Gatwick
12h 20m
1 stop
IAD16:45Washington, D.C. Dulles Intl
27 May
IAD20:20Washington, D.C. Dulles Intl
16h 30m
1 stop
LGW17:50London Gatwick
£471
Find similar
SWISS
2 Apr
LGW09:25London Gatwick
12h 20m
1 stop
IAD16:45Washington, D.C. Dulles Intl
19 Apr
IAD20:20Washington, D.C. Dulles Intl
16h 30m
1 stop
LGW17:50London Gatwick
£500
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Gatwick Airport to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 23 December 2025.
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

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Tue 12/5

10:45-23:15

1 stop17h 30m

Washington, D.C. Reagan-National

Tue 19/5

11:30-06:50

1 stop14h 20m

£452

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 6/2

18:40-14:35

2 stops24h 55m

Washington, D.C. Dulles Intl

Sun 15/2

20:30-17:50

1 stop16h 20m

£461

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Tue 19/5

13:00-19:25

1 stop11h 25m

Baltimore/Washington

Mon 25/5

20:30-11:45

1 stop10h 15m

£462

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 30/1

21:25-15:15

2 stops22h 50m

Washington, D.C. Dulles Intl

Thu 5/2

17:30-15:50

1 stop17h 20m

£462

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 20/1

11:55-18:30

1 stop11h 35m

Washington, D.C. Dulles Intl

Tue 27/1

19:40-10:55

1 stop10h 15m

£463

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 5/2

11:45-18:54

2 stops36h 09m

Washington, D.C. Reagan-National

Sun 8/2

17:45-10:50

2 stops36h 05m

£463

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Wed 20/5

15:40-19:25

1 stop32h 45m

Baltimore/Washington

Tue 26/5

23:35-14:40

1 stop10h 05m

£463

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 26/2

14:00-07:20

1 stop22h 20m

Washington, D.C. Dulles Intl

Sun 8/3

20:40-16:55

2 stops16h 15m

£464

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 29/1

14:00-23:47

1 stop14h 47m

Baltimore/Washington

Sat 21/3

20:40-14:15

2 stops13h 35m

£464

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 10/3

16:35-22:00

1 stop33h 25m

Washington, D.C. Dulles Intl

Thu 19/3

18:30-20:40

2 stops22h 10m

£474

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

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

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 April. Flight prices, which tend to average around £429, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in April, then you should wait until March to fly from London Gatwick Airport, when ticket prices are also cheap, with an average price of £433.

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 Thursday. momondo users have found tickets for Thursday departures for as low as £587. 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 £645.

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

In the evening 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 £511. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the afternoon, with an average ticket price of £608. Departure times in the afternoon 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 58% 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

  • 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.?

  • 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.?

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
IcelandairPriceFrom £345Free CancellationRating
7.0
592 reviews
Search Icelandair flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
College Park
Alexandria
Fairfax
Arlington
Linthicum Heights
Bethesda
Glen Burnie
Lutherville Timonium
Ellicott City
Cambridge
Westminster
Woodbridge
Silver Spring
Owings Mills
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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 22/1
Thu 29/1
By creating a price alert you accept our terms of use and privacy policy.

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.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport