$201 Cheap Flights from Seattle (SEA) to London (YXU)

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Cheap Flights from Seattle to London (SEA-YXU)

Prices were available within the past 7 days and start at $201 for one-way flights and $404 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
WestJet
Air Canada
Delta
Air Canada
Air Canada
WestJet
Air Canada
WestJet
Air Canada
Flights from Seattle (SEA) to London (YXU)
Origin airport
Seattle - Tacoma Intl.
Destination airport
London Intl.
Airlines serving
Air Canada, Delta, United, WestJet
Roundtrip price
$403
Distance
2001 mi

Seattle to London Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Seattle to London offer the perfect respite. Not only does exploring London provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Seattle to London may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of London are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to London more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to London is $201 now!

Frequently asked questions

How much is a one-way flight from Sea-Tac Airport to YXU?
Get ready to pack your bags, because one-way Seattle flights to London start from just $267. This is based on the cheapest price found on Expedia for this route with a departure date within the next three months. This airfare is for an WestJet flight, departing Sea-Tac Airport on June 6 2024 and touching down at YXU. The price was updated on May 17 2024 and has not changed since.
Is it cheaper to buy a plane ticket from Sea-Tac Airport to London Intl. Airport last minute?
Booking your flight from Sea-Tac Airport to London Intl. Airport at the last minute could save you cash if you’re lucky to find an epic deal. However, airfares typically don’t come down in price as the date of departure nears. If you take a wait-and-see approach, flights could also be sold out or the best seats taken (don’t get stuck in the middle!). If you’d rather not hedge your bets, book well ahead of when you want to leave. It’s worth noting that some of the best deals can be found up to a year in advance. If your favorite carrier hasn’t released its fares yet, check back regularly as offers are updated on Expedia constantly.
What is the cheapest airline flying from SEA to London Intl. Airport (YXU) in the next 90 days?
With ticket prices starting at $267 for a flight from Seattle to London, WestJet is the cheapest airline found on Expedia. This deal is based on airfares found on Expedia departing within the next 90 days and was updated on May 17 2024 and has not changed since. The flight jets off from Sea-Tac Airport on June 6 2024 and arrives at London Intl. Airport (YXU).
What's the cheapest price for a flight from SEA to YXU next month?
The lowest price for a flight from Seattle to London over the next month is $267. If you’re planning to take off soon, lock in this fare before it’s gone. This price was found after looking at all available flights on Expedia with a departure date within the next 30 days. This fare is for a one-way WestJet flight journeying from Sea-Tac Airport on June 6 2024 and landing at YXU. The price was last updated on May 17 2024 and has not changed since.
What airports do you fly into for London from Seattle?
There are two options when journeying from Seattle to London — London Intl. Airport (YXU) and Region of Waterloo Intl. Airport (YKF). If you choose to arrive at London Intl. Airport (YXU) you’ll be around 6 mi to the northeast of the center of London. Make a beeline for your hotel, then set out and experience the local sights! University of Western Ontario and Budweiser Gardens are just two of this destination’s favorite attractions.
Can I change the date of my flight from Sea-Tac Airport to YXU?
It’s a cinch to make amendments to your SEA to London Intl. Airport trip yourself. Just log in to the Expedia Trips portal and click on “change flight.” Search for new flights and lock in the one that works best with your plans. You’ll see an estimate of any flight change fees. Alternatively, head to our Customer Service portal to chat to our Virtual Agent and quickly get answers to your questions.
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