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Flights from London to Seattle
Cheap flight deals from London to Seattle
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Sun, Jun 8 | WestJetSEA 07:059h 4m1 stopsYXU 19:09Seattle - London | Fri, Jun 13 | WestJetAED 579 AED 97240% OFF40% OFFAED 972 AED 579
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YXU 06:157h 30m1 stopsSEA 10:45London - Seattle | Sat, May 24 | Air CanadaSEA 11:306h 58m1 stopsYXU 21:28Seattle - London | Sat, May 31 | Air CanadaAED 613 AED 97237% OFF37% OFFAED 972 AED 613
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Wed, Jun 4 | WestJetSEA 07:0519h 9m1 stopsYXU 05:14Seattle - London | Wed, Jun 11 | WestJetAED 637 AED 97234% OFF34% OFFAED 972 AED 637
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Sat, May 24 | WestJetSEA 08:2517h 49m1 stopsYXU 05:14Seattle - London | Sat, May 31 | WestJetAED 64234% OFFAED 972 AED 642
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Mon, Jun 2 | WestJetSEA 07:0519h 9m1 stopsYXU 05:14Seattle - London | Mon, Jun 9 | WestJetAED 66731% OFFAED 972 AED 667
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YXU 20:0027h 28m1 stopsSEA 20:28London - Seattle | Mon, Jun 9 | WestJetSEA 07:059h 4m1 stopsYXU 19:09Seattle - London | Fri, Jun 13 | WestJetAED 67730% OFFAED 972 AED 677
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YXU 06:157h 30m1 stopsSEA 10:45London - Seattle | Sat, May 24 | United AirlinesSEA 11:306h 58m1 stopsYXU 21:28Seattle - London | Sat, May 31 | Air CanadaAED 71626% OFFAED 972 AED 716
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YXU 20:0019h 58m1 stopsSEA 12:58London - Seattle | Sat, Jun 7 | WestJetSEA 07:0519h 9m1 stopsYXU 05:14Seattle - London | Thu, Jun 12 | WestJetAED 76222% OFFAED 972 AED 762
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YXU 20:0019h 58m1 stopsSEA 12:58London - Seattle | Fri, May 30 | WestJetSEA 07:0519h 9m1 stopsYXU 05:14Seattle - London | Mon, Jun 2 | WestJetAED 77021% OFFAED 972 AED 770
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YXU 20:0019h 58m1 stopsSEA 12:58London - Seattle | Mon, May 26 | WestJetSEA 07:0519h 9m1 stopsYXU 05:14Seattle - London | Mon, Jun 2 | WestJetAED 77820% OFFAED 972 AED 778
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YXU 13:0017h 25m1 stopsSEA Invalid DateLondon - Seattle | Mon, Apr 28 | Normal AirlineSEA 15:006hNonstopYXU 16:00Seattle - London | Wed, Apr 30 | Normal AirlineFind More FlightsFind More Flights
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Tue, Jun 3 | WestJetAED 354 AED 71651% OFF51% OFFAED 716 AED 354
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Tue, May 20 | WestJetAED 362 AED 71649% OFF49% OFFAED 716 AED 362
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Sun, May 18 | WestJetAED 372 AED 71648% OFF48% OFFAED 716 AED 372
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YXU 20:0019h 58m1 stopsSEA 12:58London - Seattle | Mon, May 26 | WestJetAED 46136% OFFAED 716 AED 461
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YXU 20:0027h 28m1 stopsSEA 20:28London - Seattle | Mon, Jun 9 | WestJetAED 46136% OFFAED 716 AED 461
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YXU 20:0019h 58m1 stopsSEA 12:58London - Seattle | Fri, May 23 | WestJetAED 46635% OFFAED 716 AED 466
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YXU 20:0019h 58m1 stopsSEA 12:58London - Seattle | Sat, May 24 | WestJetAED 46735% OFFAED 716 AED 467
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Tue, May 20 | Delta Air LinesAED 55023% OFFAED 716 AED 550
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Sun, May 18 | Delta Air LinesAED 55522% OFFAED 716 AED 555
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YXU 06:009h 58m1 stopsSEA 12:58London - Seattle | Tue, Jun 3 | Delta Air LinesAED 57320% OFFAED 716 AED 573
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YXU 13:0017h 25m1 stopsSEA Invalid DateLondon - Seattle | Mon, Apr 28 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Info | London to Seattle
Cheapest one-way flight price | AED 353 |
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Off-season for travel | March |
Peak season for travel | February |
Flight distance | 3,220.52 km |
Popular airline | Delta Air Lines |
When is the cheapest time to fly from London to Seattle?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from London (YXU) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from London to Seattle based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from London (YXU) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around AED 1,868. -
How many airports are there in Seattle (SEA)?
There are 3 airport(s) near Seattle (SEA): King County (Boeing Field) International Airport, Lake Union Sea Plane Base and Seattle–Tacoma International Airport.
How to find a cheap flight from London to Seattle
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to Seattle. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest London to Seattle ticket.
Tap "Date" on flight search bar to scan through the calender for London to Seattle airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Tue, Jun 3 at AED 354 for one-way flights.
Compare cheap London to Seattle flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from London to Seattle. The cheapest airline operating is WestJet.
Set up a Price Alert
By setting up a Price Alert for your London to Seattle route, you can easily track the price of your airline tickets from without manually checking every day.
Don't miss cheap London to Seattle flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from London to Seattle to get exclusive deals for you.
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