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Popular airlines from Seattle to London

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Prices were available within the past 7 days and start at P40,804 for one-way flights and P68,162 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Condor
Thu, Feb 19 - Fri, Feb 27
SEA
Seattle
LHR
London
P68,162 Roundtrip, found 3 days ago
P68,162
Roundtrip
found 3 days ago
Select Condor flight, departing Thu, Feb 19 from Seattle to London, returning Fri, Feb 27, priced at P68,162 found 3 days ago
Condor
Sat, Jun 20 - Sun, Jun 28
SEA
Seattle
LHR
London
P107,080 Roundtrip, found 1 day ago
P107,080
Roundtrip
found 1 day ago
Select Condor flight, departing Sat, Jun 20 from Seattle to London, returning Sun, Jun 28, priced at P107,080 found 1 day ago
Alaska Airlines
Sat, Jun 20 - Sun, Jun 28
SEA
Seattle
LHR
London
P107,789 Roundtrip, found 1 day ago
P107,789
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Jun 20 from Seattle to London, returning Sun, Jun 28, priced at P107,789 found 1 day ago
Condor
Sat, Jun 20 - Sun, Jun 28
SEA
Seattle
LHR
London
P119,845 Roundtrip, found 1 day ago
P119,845
Roundtrip
found 1 day ago
Select Condor flight, departing Sat, Jun 20 from Seattle to London, returning Sun, Jun 28, priced at P119,845 found 1 day ago
Alaska Airlines
Sat, Jun 20 - Sun, Jun 28
SEA
Seattle
LHR
London
P120,554 Roundtrip, found 1 day ago
P120,554
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Jun 20 from Seattle to London, returning Sun, Jun 28, priced at P120,554 found 1 day ago
Alaska Airlines
Sat, Jun 20 - Sun, Jun 28
SEA
Seattle
LHR
London
P135,446 Roundtrip, found 1 day ago
P135,446
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Jun 20 from Seattle to London, returning Sun, Jun 28, priced at P135,446 found 1 day ago
Alaska Airlines
Sat, Jun 20 - Sun, Jun 28
SEA
Seattle
LHR
London
P148,211 Roundtrip, found 1 day ago
P148,211
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Jun 20 from Seattle to London, returning Sun, Jun 28, priced at P148,211 found 1 day ago

Frequently asked questions

How much is a flight from Sea-Tac Airport to London (LON-All Airports)?
Round-trip journeys from Seattle - Tacoma Intl. Airport (SEA) to London (LON-All Airports) start from P68,162. This is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book now so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to London (LON-All Airports)?
Most flights can be canceled online, but each air carrier has its own terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to London (LON-All Airports) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to London (LON-All Airports) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to London (LON-All Airports)?
Make the 14 hours and 48 minutes between SEA and London (LON-All Airports) as comfortable as you can. Bring the essentials, like a water bottle, toothbrush and toiletries, and simply enjoy the flight!
How far is the flight from SEA to London (LON-All Airports)?
With around 7,700 kilometers separating SEA and London (LON-All Airports), your flight will be a long one. Pack wisely and make your time on board comfortable. Simple things like an eye mask and a good travel pillow can make a massive difference.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to London (LON-All Airports)?
You have lots of options when flying from SEA to London (LON-All Airports). Lock in your fare with one of these popular airlines:

  • Virgin Atlantic - (VS) with 30 monthly flights
  • American Airlines - (AA) with 30 monthly flights
  • British Airways - (BA) with 30 monthly flights
  • Delta Air Lines - (DL) with 17 monthly flights

Are Sea-Tac Airport to London (LON-All Airports) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from SEA to London (LON-All Airports) can be hit-or-miss. It is possible to score a bargain, but you could also miss out entirely! If you'd prefer to play it safe and start planning early on, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines publish their prices that far in advance. Our suggestion? Check back often as updates are made regularly.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Heathrow
Roundtrip price
P68,161
Distance
7657 km

Book with confidence

Perfect flights from Seattle to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to London. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Seattle - Tacoma Intl. to LON-All Airports ticket options cater to your travel preferences, with incredible one-way fares from P40,804 and roundtrip prices from P68,162. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at LON-All Airports and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in London.
Perfect flights from Seattle to London
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