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London to Seattle Flight, Fares starting @₹43515

London to Seattle Flight Information

WestJet

Lowest Price Airline Tomorrow

₹43,515

Lowest Ticket Price

17 Feb 2026

Lowest Price Date

10h

Shortest Time

06:30

First Flight Departure

18:00

Last Flight Departure

Book your London to Seattle flight tickets at the cheapest price starting at ₹43515. Compare 100+ daily flights from all major trusted airlines, updated hourly. The shortest flight duration is 10h . ixigo provides information like real-time flight fares, flight timings, duration, flight schedule (including departure and arrival time), changes & stops (if any), and price trends for all LHR to SEA flights. Get free cancellation and instant rescheduling on all domestic flight tickets with 'Assured Flex'. Also, book return Seattle to London flight cheap tickets..

London to Seattle Flights - Frequently Asked Questions

Which is the cheapest price or lowest airfare from London to Seattle?

The cheapest London to Seattle flight price is ₹43515. This flight is operated by WestJet and operates on 17 Feb. Use Code ‘FLYNOW’ to get Upto 25% additional Off on this flight. The price varies according to the class that you choose, with business class tickets being more expensive than economy class.

Are there any bank offers running to get a discount or cashback on London to Seattle flight?

Yes, we have great bank offers for you to get cashback. Check flight offers.

When does the first flight leave from London to Seattle?

The first flight leaves London at 06:30. It arrives at Seattle by 12:10.

Which is the last flight on the London to Seattle route?

The last flight from London departs at 18:00. It arrives at Seattle by 22:16.

How long is flight from London to Seattle?

The flight from London to Seattle takes about 10h .

What’s the best way to book a flight from London to Seattle – airline website or a travel platform like ixigo?

If you’re booking a flight from London to Seattle, ixigo is a top choice for a smooth and rewarding travel experience. With its user-friendly interface, real-time fare tracking and smart features like Assured, Assured Flex, Smart Web Check-in, Flight Tracker Pro and Price Lock, planning your trip will always be stress-free. With ixigo, you can compare fares across all airlines in one place and enjoy the flexibility of paying through multiple loyalty programs including Zillion, Supercoins, InterMiles, IndusInd Bank, Yes Bank, and more. You can also use 100% of your ixigo money balance for an instant discount on your flight, with no restrictions on travel dates or booking amount. Enjoy fast, secure payments and the confidence of 24×7 trusted customer support via chat, email, or phone. If you're looking for value, flexibility and convenience, ixigo is the smarter way to book your next flight.

Is it cheaper to book a London to Seattle flight directly from the airline or via a travel platform like ixigo?

While many believe booking directly through an airline is cheaper, that’s not always true. With ixigo, you get access to real-time fare comparisons across multiple airlines, so you know you're getting the best deal. You also have access to ixigo's special offers, instant discounts, flash sales and limited-time promo codes that airlines usually don’t provide. New users get access to exclusive welcome offers and personalised comeback deals if you haven’t booked in a while. You can also enjoy instant discounts through top bank offers from ICICI, HDFC, AU Bank and more. You can opt for ixigo Credit for instant credit of up to ₹1 lakh, with the choice to repay in the next billing cycle or convert it into easy EMIs. With ixigo, you don’t just book flights, you unlock a bundle of benefits, savings, and flexibility every time you fly.

How many flights fly on this route everyday?

A total of 100 currently operates daily on the London Seattle route.

Which airline fly from London to Seattle?

Major Airlines such as Finnair, American Airlines, British Airways, Air France, KLM Royal Dutch Airlines, Delta Airlines, Virgin Atlantic, WestJet, Lufthansa, United Airlines, Air Canada, Austrian Airlines, Brussels Airlines regularly fly on this route.

How can I do web check-in for my upcoming flight?

All airline websites offer an online web check-in service where you can save yourself time. Just visit the official website of the airlines of your booked flight. Select the seat of your choice by entering your PNR number and last name.

Are meals served on these flights now?

All major airlines have started serving meals on flights. It is advisable to get the latest information from the official website of airlines as this information keeps on changing.

Which airline has the maximum number of flights between London to Seattle

United Airlines currently operates the highest number of flights between these locations.

Airport Details

London

Heathrow

Seattle

Seattle/Tacoma Intl