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Cheap flights from London Gatwick Airport to Washington from £322

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 departing on 21/1. 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
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Find the cheapest flights from London Gatwick Airport to Washington

Cheap return flights

Enter your travel dates to find the best prices.
SWISS Logo
09:25 - 14:30
LGW
-
SEA
13h 05m1 stop
SWISS Logo
16:30 - 17:50
SEA
-
LGW
17h 20m1 stop
£448SWISS
Sat, 6 Jun - Sat, 20 Jun
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m1 stop
Icelandair Logo
15:40 - 14:40
SEA
-
LGW
15h 00m1 stop
£464Icelandair
Wed, 8 Apr - Wed, 15 Apr
Icelandair Logo
11:55 - 18:00
LGW
-
SEA
13h 05m1 stop
Icelandair Logo
15:35 - 10:55
SEA
-
LGW
12h 20m1 stop
£466Icelandair
Thu, 19 Mar - Thu, 26 Mar
Icelandair Logo
15:40 - 17:55
LGW
-
SEA
34h 15m1 stop
Icelandair Logo
15:40 - 14:40
SEA
-
LGW
15h 00m1 stop
£467Icelandair
Sun, 5 Apr - Sat, 18 Apr
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m1 stop
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m1 stop
£468Icelandair
Wed, 8 Apr - Wed, 15 Apr
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m1 stop
Icelandair Logo
15:40 - 14:40
SEA
-
LGW
15h 00m1 stop
£469Icelandair
Sun, 5 Apr - Sat, 18 Apr
Multiple Airlines Logo
13:00 - 12:38
LGW
-
PDX
31h 38m2 stops
Multiple Airlines Logo
10:39 - 06:00
PDX
-
LGW
35h 21m1 stop
£577Multiple Airlines
Mon, 9 Feb - Mon, 23 Feb
Iberia Logo
19:40 - 18:49
LGW
-
GEG
31h 09m2 stops
Iberia Logo
05:51 - 19:00
GEG
-
LGW
29h 09m2 stops
£625Iberia
Mon, 9 Feb - Fri, 27 Feb
Multiple Airlines Logo
11:55 - 21:37
LGW
-
GEG
16h 42m2 stops
Multiple Airlines Logo
12:00 - 10:55
GEG
-
LGW
15h 55m2 stops
£641Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Iberia Logo
19:40 - 21:13
LGW
-
GEG
33h 33m2 stops
Iberia Logo
05:51 - 10:50
GEG
-
LGW
20h 59m2 stops
£643Iberia
Wed, 11 Feb - Sat, 28 Feb

SWISS flights from London Gatwick Airport to State of Washington

Our best SWISS deals on London Gatwick Airport to State of Washington flight tickets
SWISS
6 Jun
LGW09:25London Gatwick
13h 05m
1 stop
SEA14:30Seattle/Tacoma Intl
20 Jun
SEA16:30Seattle/Tacoma Intl
17h 20m
1 stop
LGW17:50London Gatwick
£448
Find similar
SWISS
6 Jun
LGW18:35London Gatwick
31h 55m
2 stops
SEA18:30Seattle/Tacoma Intl
20 Jun
SEA16:30Seattle/Tacoma Intl
17h 20m
1 stop
LGW17:50London Gatwick
£475
Find similar
SWISS
13 Apr
LGW09:15London Gatwick
22h 12m
2 stops
SEA23:27Seattle/Tacoma Intl
14 Oct
SEA13:45Seattle/Tacoma Intl
20h 05m
2 stops
LGW17:50London Gatwick
£543
Find similar

Icelandair flights from London Gatwick Airport to State of Washington

Our best Icelandair deals on London Gatwick Airport to State of Washington flight tickets
Icelandair
8 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
15 Apr
SEA15:40Seattle/Tacoma Intl
15h 00m
1 stop
LGW14:40London Gatwick
£464
Find similar
Icelandair
19 Mar
LGW11:55London Gatwick
13h 05m
1 stop
SEA18:00Seattle/Tacoma Intl
26 Mar
SEA15:35Seattle/Tacoma Intl
12h 20m
1 stop
LGW10:55London Gatwick
£466
Find similar
Icelandair
5 Apr
LGW15:40London Gatwick
34h 15m
1 stop
SEA17:55Seattle/Tacoma Intl
18 Apr
SEA15:40Seattle/Tacoma Intl
15h 00m
1 stop
LGW14:40London Gatwick
£467
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Gatwick Airport to State of Washington 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 21 December 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 6/6

09:25-14:30

1 stop13h 05m

Seattle/Tacoma Intl

Sat 20/6

16:30-17:50

1 stop17h 20m

£448

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 8/4

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Wed 15/4

15:40-14:40

1 stop15h 00m

£464

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 19/3

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

Thu 26/3

15:35-10:55

1 stop12h 20m

£466

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 5/4

15:40-17:55

1 stop34h 15m

Seattle/Tacoma Intl

Sat 18/4

15:40-14:40

1 stop15h 00m

£467

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 8/4

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Wed 15/4

19:00-14:40

1 stop11h 40m

£468

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 5/4

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sat 18/4

15:40-14:40

1 stop15h 00m

£469

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 9/2

13:00-12:38

2 stops31h 38m

Portland

Mon 23/2

10:39-06:00

1 stop35h 21m

£577

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Mon 9/2

19:40-18:49

2 stops31h 09m

Spokane

Fri 27/2

05:51-19:00

2 stops29h 09m

£625

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 10/3

11:55-21:37

2 stops16h 42m

Spokane

Tue 17/3

12:00-10:55

2 stops15h 55m

£641

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Wed 11/2

19:40-21:13

2 stops33h 33m

Spokane

Sat 28/2

05:51-10:50

2 stops20h 59m

£643

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Washington from

How to get the cheapest flight ticket from London Gatwick Airport to State of Washington

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 State of Washington?

If you aren’t able to travel to State of Washington during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £401.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from London Gatwick Airport to State of Washington is on a Wednesday. Travellers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as £492. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to State of Washington on Monday is £667.

What is the cheapest time of day to depart on your flight to State of Washington?

Flying to State of Washington from London Gatwick Airport at midday is the least expensive time of day to depart. momondo users have found prices as low as £512 when looking at flights departing at midday. In contrast, the most expensive time of day to depart to State of Washington is in the afternoon when prices are around £556.

Can stopping save me money on London Gatwick Airport to State of Washington flights?

You could potentially save up to 54% on your flight if you consider stops on a London Gatwick Airport to State of Washington flight.

Cheap London Gatwick Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Gatwick Airport to State of Washington

Fastest flight time

13h 00m

Direct flights

None
The fastest flight from London Gatwick Airport to State of Washington takes 13h 00m
There are no direct flights from London Gatwick Airport to State of Washington. There are no popular flight routes from London Gatwick Airport to State of Washington.
Search flight deals

  • When did momondo last update prices for flights from London Gatwick Airport to Washington?

    Prices for flights from London Gatwick Airport to Washington refresh daily.

  • How many operators does momondo search for flights from London Gatwick Airport to Washington?

  • How old do you have to be to fly from London Gatwick Airport to Washington?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Gatwick Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents you'll need for your trip to Washington 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London Gatwick Airport to State of Washington

Compare and see reviews for airlines that fly from London Gatwick Airport to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £326Free CancellationRating
7.0
592 reviews
Search Icelandair flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from London.

Can I find flights from London to Washington with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Washington?

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.

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

Yes. momondo can track prices for London to Washington 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.

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