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Cheap flights from London Gatwick Airport to Washington, D.C. from $296

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 1/24. 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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Find the cheapest flights from London Gatwick Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
11:55 am - 6:30 pm
LGW
-
IAD
11h 35m1 stop
Icelandair Logo
7:40 pm - 10:55 am
IAD
-
LGW
10h 15m1 stop
$621Icelandair
lun., ene. 26 - lun., feb. 2
Multiple Airlines Logo
1:00 pm - 10:59 pm
LGW
-
DCA
14h 59m1 stop
Multiple Airlines Logo
6:00 am - 6:00 am
DCA
-
LGW
19h 00m1 stop
$622Multiple Airlines
vie., ene. 23 - lun., ene. 26
Icelandair Logo
11:55 am - 6:30 pm
LGW
-
IAD
11h 35m1 stop
Icelandair Logo
7:40 pm - 10:55 am
IAD
-
LGW
10h 15m1 stop
$622Icelandair
mar., feb. 24 - dom., mar. 1
Multiple Airlines Logo
2:00 pm - 11:47 pm
LGW
-
BWI
14h 47m1 stop
Multiple Airlines Logo
9:26 am - 10:00 am
BWI
-
LGW
19h 34m2 stops
$624Multiple Airlines
jue., ene. 22 - lun., ene. 26
Icelandair Logo
11:55 am - 6:30 pm
LGW
-
IAD
11h 35m1 stop
Icelandair Logo
8:40 pm - 10:55 am
IAD
-
LGW
10h 15m1 stop
$625Icelandair
mié., mar. 4 - mié., mar. 11
Multiple Airlines Logo
2:00 pm - 11:47 pm
LGW
-
BWI
14h 47m1 stop
Multiple Airlines Logo
6:20 am - 10:00 am
BWI
-
LGW
22h 40m2 stops
$625Multiple Airlines
sáb., ene. 24 - lun., ene. 26
Multiple Airlines Logo
2:00 pm - 8:40 am
LGW
-
IAD
23h 40m1 stop
Multiple Airlines Logo
10:30 pm - 9:45 pm
IAD
-
LGW
18h 15m2 stops
$626Multiple Airlines
jue., ene. 22 - mié., ene. 28
TAP AIR PORTUGAL Logo
9:20 pm - 9:00 pm
LGW
-
IAD
28h 40m2 stops
TAP AIR PORTUGAL Logo
5:30 pm - 9:50 am
IAD
-
LGW
11h 20m1 stop
$632TAP AIR PORTUGAL
mar., ene. 13 - mar., ene. 20
TAP AIR PORTUGAL Logo
9:20 pm - 10:00 pm
LGW
-
IAD
28h 40m2 stops
TAP AIR PORTUGAL Logo
5:05 pm - 3:35 pm
IAD
-
LGW
17h 30m1 stop
$633TAP AIR PORTUGAL
mar., mar. 17 - mar., abr. 14
British Airways Logo
10:45 am - 9:30 pm
LGW
-
DCA
15h 45m1 stop
British Airways Logo
3:44 pm - 10:10 am
DCA
-
LGW
13h 26m1 stop
$637British Airways
vie., abr. 24 - lun., abr. 27

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
Jan 13
LGW9:20 pmLondon Gatwick
28h 40m
2 stops
IAD9:00 pmWashington, D.C. Dulles Intl
Jan 20
IAD5:30 pmWashington, D.C. Dulles Intl
11h 20m
1 stop
LGW9:50 amLondon Gatwick
$632
Find similar
TAP AIR PORTUGAL
Mar 17
LGW9:20 pmLondon Gatwick
28h 40m
2 stops
IAD10:00 pmWashington, D.C. Dulles Intl
Apr 14
IAD5:05 pmWashington, D.C. Dulles Intl
17h 30m
1 stop
LGW3:35 pmLondon Gatwick
$633
Find similar
TAP AIR PORTUGAL
Jan 13
LGW4:35 pmLondon Gatwick
33h 25m
1 stop
IAD9:00 pmWashington, D.C. Dulles Intl
Jan 20
IAD5:30 pmWashington, D.C. Dulles Intl
17h 15m
1 stop
LGW3:45 pmLondon Gatwick
$636
Find similar

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
Jan 26
LGW11:55 amLondon Gatwick
11h 35m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
Feb 2
IAD7:40 pmWashington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55 amLondon Gatwick
$621
Find similar
Icelandair
Feb 24
LGW11:55 amLondon Gatwick
11h 35m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
Mar 1
IAD7:40 pmWashington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55 amLondon Gatwick
$622
Find similar
Icelandair
Mar 4
LGW11:55 amLondon Gatwick
11h 35m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
Mar 11
IAD8:40 pmWashington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55 amLondon Gatwick
$625
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated diciembre 16, 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 - IAD

LGWIAD

London Gatwick

lun. 1/26

11:55 am-6:30 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

lun. 2/2

7:40 pm-10:55 am

1 stop10h 15m

$621

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

vie. 1/23

1:00 pm-10:59 pm

1 stop14h 59m

Washington, D.C. Reagan-National

lun. 1/26

6:00 am-6:00 am

1 stop19h 00m

$622

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

mar. 2/24

11:55 am-6:30 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

dom. 3/1

7:40 pm-10:55 am

1 stop10h 15m

$622

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

jue. 1/22

2:00 pm-11:47 pm

1 stop14h 47m

Baltimore/Washington

lun. 1/26

9:26 am-10:00 am

2 stops19h 34m

$624

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

mié. 3/4

11:55 am-6:30 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

mié. 3/11

8:40 pm-10:55 am

1 stop10h 15m

$625

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

sáb. 1/24

2:00 pm-11:47 pm

1 stop14h 47m

Baltimore/Washington

lun. 1/26

6:20 am-10:00 am

2 stops22h 40m

$625

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

jue. 1/22

2:00 pm-8:40 am

1 stop23h 40m

Washington, D.C. Dulles Intl

mié. 1/28

10:30 pm-9:45 pm

2 stops18h 15m

$626

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

mar. 1/13

9:20 pm-9:00 pm

2 stops28h 40m

Washington, D.C. Dulles Intl

mar. 1/20

5:30 pm-9:50 am

1 stop11h 20m

$632

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

mar. 3/17

9:20 pm-10:00 pm

2 stops28h 40m

Washington, D.C. Dulles Intl

mar. 4/14

5:05 pm-3:35 pm

1 stop17h 30m

$633

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

vie. 4/24

10:45 am-9:30 pm

1 stop15h 45m

Washington, D.C. Reagan-National

lun. 4/27

3:44 pm-10:10 am

1 stop13h 26m

$637

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 month of April is, on average, the cheapest month to fly to Washington, D.C. from London Gatwick Airport, with most prices found around $576. If you’re not able to fly to Washington, D.C. in April, then March is your next best option. Flight prices from London Gatwick Airport to Washington, D.C. during March average around $582.

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 $752. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, 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 $911.

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 $762. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $852. 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

  • 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.

  • What is the most popular airline from London Gatwick Airport to Washington, D.C.?

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

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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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