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Cheap flights from London Gatwick Airport to Washington from £299

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
2 Aug — 9 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Washington
Explore the most affordable flight options available from Gatwick to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2026.

Tue 1/913:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Sat 31/1015:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 3/7£449
Wed 7/1015:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Sat 7/1114:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 1/7£452
Sun 1/1111:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Sat 20/315:35
SEA
-
LGW
1 stop15h 05m
Icelandair
Deal found 1/7£452
Wed 7/1015:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Fri 23/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 1/7£454
Sat 29/815:40
LGW
-
SEA
1 stop28h 05m
Icelandair
Sun 6/919:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 30/6£455
Thu 20/815:40
LGW
-
SEA
1 stop28h 05m
Icelandair
Sat 5/915:40
SEA
-
LGW
1 stop12h 05m
Icelandair
Deal found 1/7£456
Wed 2/915:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Tue 8/919:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 1/7£458
Fri 4/915:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Sun 6/915:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 30/6£461
Wed 2/919:40
LGW
-
PDX
1 stop25h 55m
Multiple Airlines
Wed 14/1010:28
PDX
-
LGW
2 stops24h 17m
Multiple Airlines
Deal found 2/7£704
Tue 1/911:35
LGW
-
PDX
3 stops34h 15m
Multiple Airlines
Tue 15/910:10
PDX
-
LGW
2 stops16h 35m
Multiple Airlines
Deal found 1/7£705
Tue 4/819:25
LGW
-
PDX
3 stops46h 06m
Multiple Airlines
Wed 19/819:05
PDX
-
LGW
2 stops15h 20m
Multiple Airlines
Deal found 29/6£706
Thu 27/814:00
LGW
-
PDX
1 stop38h 12m
Multiple Airlines
Thu 10/921:30
PDX
-
LGW
1 stop24h 50m
Multiple Airlines
Deal found 2/7£707

Find flight deals from Gatwick to Washington

Keep the following information in mind while searching for Gatwick to Washington flight deals. Data was last updated 3 July 2026.

Round-trip from

£449

One-way from

£299

Popular in

July

Cheapest in

February

Average price

£647
Icelandair
  • Icelandair
  • 1/9-31/10
  • 2 total stops
  • 25h 15m total
  • London to Washington
Search Deals
9/9
  • 9/9
  • 3 total stops
  • 52h 25m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to 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, Cheapflights users made 858,174 searches. Data last updated 3 July 2026.
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

Cheapest return flight

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 19/9

10:25-23:20

2 stops20h 55m

Seattle/Tacoma Intl

Thu 1/10

12:36-16:00

2 stops19h 24m

£562

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 20/8

10:25-17:34

1 stop15h 09m

Seattle/Tacoma Intl

Sat 5/9

18:45-16:00

1 stop13h 15m

£601

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 27/8

09:25-20:43

2 stops19h 18m

Seattle/Tacoma Intl

Mon 31/8

07:00-08:25

2 stops17h 25m

£629

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 20/7

10:25-17:27

1 stop15h 02m

Seattle/Tacoma Intl

Wed 5/8

18:40-16:00

1 stop13h 20m

£631

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 16/7

10:25-17:27

1 stop15h 02m

Seattle/Tacoma Intl

Fri 31/7

18:35-16:00

1 stop13h 25m

£632

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 16/7

10:25-17:27

1 stop15h 02m

Seattle/Tacoma Intl

Thu 30/7

13:30-09:25

1 stop11h 55m

£632

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 8/9

15:40-23:11

2 stops39h 31m

Spokane

Tue 6/10

16:38-14:40

2 stops14h 02m

£714

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 21/7

10:35-23:58

2 stops21h 23m

Seattle/Tacoma Intl

Tue 11/8

18:40-16:00

1 stop13h 20m

£721

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 8/9

10:35-22:54

2 stops20h 19m

Spokane

Tue 6/10

13:00-16:00

2 stops19h 00m

£731
Fastest return journey

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 9/10

10:20-16:00

1 stop13h 40m

Seattle/Tacoma Intl

Sun 11/10

17:40-14:40

1 stop13h 00m

£732

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 52 resultsSorted by cheapest first
1
2
3
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6

Best time to book a flight from Gatwick to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Gatwick with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Washington

How much does it cost for a return flight from London Gatwick Airport to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 3 July 2026.
Read through reviews of airlines operating flights from London Gatwick Airport to Washington, such as Icelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
697 reviews
Check prices

Entertainment

6.9

Food

6.2

Overall

7.0

Boarding

7.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.
Icelandair
7.0
Good
697 reviews
Icelandair
7.0
Good
697 reviews
Check prices

Entertainment

6.9

Food

6.2

Overall

7.0

Boarding

7.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Gatwick Airport to State of Washington?

    Airlines like Virgin Atlantic, Delta, and SWISS fly from London Gatwick Airport to State of Washington in about 15h 09m. The time it takes to get you to your destination can typically vary by up to 5h 46m. The distance between London Gatwick Airport and State of Washington is about 4807 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from London Gatwick Airport to State of Washington?

    The most popular route from London Gatwick Airport to State of Washington is London Gatwick - Seattle/Tacoma Intl. You may also consider London Gatwick - Portland or London Gatwick - Spokane.

  • Can I find deals for flights from Gatwick to Washington that include hotel bookings?

    Yes. In addition to deals on Gatwick to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Washington.

  • Can I find deals for business class flights from Gatwick to Washington?

    Yes. Cheapflights offers flight deals from Gatwick to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Gatwick to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Gatwick to Washington

Discover the top airline that operate flights from Gatwick to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£397Average£528FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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