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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 P64,737 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P64,737 Roundtrip, found 3 days ago
P64,737
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P64,737 found 3 days ago
Condor
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P65,411 Roundtrip, found 3 days ago
P65,411
Roundtrip
found 3 days ago
Select Condor flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P65,411 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P66,086 Roundtrip, found 3 days ago
P66,086
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P66,086 found 3 days ago
Condor
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P66,760 Roundtrip, found 3 days ago
P66,760
Roundtrip
found 3 days ago
Select Condor flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P66,760 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P70,132 Roundtrip, found 3 days ago
P70,132
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P70,132 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P71,480 Roundtrip, found 3 days ago
P71,480
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P71,480 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P72,155 Roundtrip, found 3 days ago
P72,155
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P72,155 found 3 days ago
Condor
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P72,829 Roundtrip, found 3 days ago
P72,829
Roundtrip
found 3 days ago
Select Condor flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P72,829 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P74,178 Roundtrip, found 3 days ago
P74,178
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P74,178 found 3 days ago
Condor
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P74,852 Roundtrip, found 3 days ago
P74,852
Roundtrip
found 3 days ago
Select Condor flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P74,852 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P76,875 Roundtrip, found 3 days ago
P76,875
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P76,875 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P77,550 Roundtrip, found 3 days ago
P77,550
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P77,550 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P79,573 Roundtrip, found 3 days ago
P79,573
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P79,573 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P80,247 Roundtrip, found 3 days ago
P80,247
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P80,247 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P82,270 Roundtrip, found 3 days ago
P82,270
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P82,270 found 3 days ago
Condor
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P82,944 Roundtrip, found 3 days ago
P82,944
Roundtrip
found 3 days ago
Select Condor flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P82,944 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P84,293 Roundtrip, found 3 days ago
P84,293
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P84,293 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P87,665 Roundtrip, found 3 days ago
P87,665
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P87,665 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P89,688 Roundtrip, found 3 days ago
P89,688
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P89,688 found 3 days ago
Alaska Airlines
Thu, Aug 14 - Sun, Aug 31
SEA
Seattle
LHR
London
P90,362 Roundtrip, found 3 days ago
P90,362
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Seattle to London, returning Sun, Aug 31, priced at P90,362 found 3 days ago
Seattle to London route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Heathrow
Roundtrip price
P64,736
Distance
7657 km

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 P64,737. 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.

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 P64,737. 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.

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