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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 P68,722 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Condor
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P68,722 Roundtrip, found 2 days ago
P68,722
Roundtrip
found 2 days ago
Select Condor flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P68,722 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P70,031 Roundtrip, found 2 days ago
P70,031
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P70,031 found 2 days ago
Condor
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P71,340 Roundtrip, found 2 days ago
P71,340
Roundtrip
found 2 days ago
Select Condor flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P71,340 found 2 days ago
Condor
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P71,995 Roundtrip, found 2 days ago
P71,995
Roundtrip
found 2 days ago
Select Condor flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P71,995 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P72,649 Roundtrip, found 2 days ago
P72,649
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P72,649 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P73,304 Roundtrip, found 2 days ago
P73,304
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P73,304 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P73,958 Roundtrip, found 2 days ago
P73,958
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P73,958 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P75,267 Roundtrip, found 2 days ago
P75,267
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P75,267 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P75,922 Roundtrip, found 2 days ago
P75,922
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P75,922 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P76,576 Roundtrip, found 2 days ago
P76,576
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P76,576 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P77,231 Roundtrip, found 2 days ago
P77,231
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P77,231 found 2 days ago
Condor
Sun, Jul 13 - Wed, Jul 30
SEA
Seattle
LHR
London
P79,194 Roundtrip, found 2 days ago
P79,194
Roundtrip
found 2 days ago
Select Condor flight, departing Sun, Jul 13 from Seattle to London, returning Wed, Jul 30, priced at P79,194 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P79,849 Roundtrip, found 2 days ago
P79,849
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P79,849 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P80,503 Roundtrip, found 2 days ago
P80,503
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P80,503 found 2 days ago
Alaska Airlines
Sun, Jul 13 - Wed, Jul 30
SEA
Seattle
LHR
London
P81,158 Roundtrip, found 2 days ago
P81,158
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sun, Jul 13 from Seattle to London, returning Wed, Jul 30, priced at P81,158 found 2 days ago
Alaska Airlines
Sun, Jul 13 - Wed, Jul 30
SEA
Seattle
LHR
London
P82,467 Roundtrip, found 2 days ago
P82,467
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sun, Jul 13 from Seattle to London, returning Wed, Jul 30, priced at P82,467 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P83,121 Roundtrip, found 2 days ago
P83,121
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P83,121 found 2 days ago
Alaska Airlines
Mon, Sep 1 - Tue, Sep 16
SEA
Seattle
LHR
London
P84,430 Roundtrip, found 2 days ago
P84,430
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep 1 from Seattle to London, returning Tue, Sep 16, priced at P84,430 found 2 days ago
Condor
Sun, Jul 13 - Wed, Jul 30
SEA
Seattle
LHR
London
P85,085 Roundtrip, found 2 days ago
P85,085
Roundtrip
found 2 days ago
Select Condor flight, departing Sun, Jul 13 from Seattle to London, returning Wed, Jul 30, priced at P85,085 found 2 days ago
Alaska Airlines
Sun, Jul 13 - Wed, Jul 30
SEA
Seattle
LHR
London
P86,394 Roundtrip, found 2 days ago
P86,394
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sun, Jul 13 from Seattle to London, returning Wed, Jul 30, priced at P86,394 found 2 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 P68,722. 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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