The Houses of Parliament and Big Ben in London, with a red double-decker bus crossing the Lambeth Bridge.

Popular airlines from Seattle-Tacoma International Airport (SEA) to London

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Prices were available within the past 7 days and start at for one-way flights and P62,904 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P62,904 Roundtrip, found 3 days ago
P62,904
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P62,904 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P65,764 Roundtrip, found 3 days ago
P65,764
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P65,764 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P70,768 Roundtrip, found 3 days ago
P70,768
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P70,768 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P71,482 Roundtrip, found 3 days ago
P71,482
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P71,482 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P73,627 Roundtrip, found 3 days ago
P73,627
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P73,627 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P74,342 Roundtrip, found 3 days ago
P74,342
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P74,342 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P75,771 Roundtrip, found 3 days ago
P75,771
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P75,771 found 3 days ago
Condor
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P77,916 Roundtrip, found 3 days ago
P77,916
Roundtrip
found 3 days ago
Select Condor flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P77,916 found 3 days ago
Condor
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P78,631 Roundtrip, found 3 days ago
P78,631
Roundtrip
found 3 days ago
Select Condor flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P78,631 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P80,060 Roundtrip, found 3 days ago
P80,060
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P80,060 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P82,920 Roundtrip, found 3 days ago
P82,920
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P82,920 found 3 days ago
Condor
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P84,349 Roundtrip, found 3 days ago
P84,349
Roundtrip
found 3 days ago
Select Condor flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P84,349 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P87,209 Roundtrip, found 3 days ago
P87,209
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P87,209 found 3 days ago
Condor
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P88,638 Roundtrip, found 3 days ago
P88,638
Roundtrip
found 3 days ago
Select Condor flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P88,638 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LGW
London
P90,783 Roundtrip, found 3 days ago
P90,783
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P90,783 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P91,498 Roundtrip, found 3 days ago
P91,498
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P91,498 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P92,927 Roundtrip, found 3 days ago
P92,927
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P92,927 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P95,072 Roundtrip, found 3 days ago
P95,072
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P95,072 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P95,787 Roundtrip, found 3 days ago
P95,787
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P95,787 found 3 days ago
Alaska Airlines
Mon, Aug 24 - Mon, Aug 31
SEA
Seattle
LHR
London
P97,216 Roundtrip, found 3 days ago
P97,216
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Aug 24 from Seattle to London, returning Mon, Aug 31, priced at P97,216 found 3 days 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 P62,904. 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
Gatwick
Roundtrip price
P62,904
Distance
7697 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 and roundtrip prices from P62,904. 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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