Cheap Flights From Seattle - Tacoma Intl. (SEA) To Heathrow (LHR)

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Cheapest Flights from Seattle (SEA) to London (LHR)

The cheapest flights to Heathrow found within the past 7 days were CA $666 round trip and CA $298 one way. Prices and availability subject to change. Additional terms may apply.

Wed., Aug. 13 - Thu., Aug. 28
SEA
Seattle
LHR
London
CA $666 Roundtrip, found 1 day ago
CA $666
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Wed., Aug. 13 from Seattle to London, returning Thu., Aug. 28, priced at CA $666 found 1 day ago
Mon., Oct. 6 - Tue., Oct. 14
SEA
Seattle
LHR
London
CA $792 Roundtrip, found 2 days ago
CA $792
Roundtrip
found 2 days ago
Select Icelandair flight, departing Mon., Oct. 6 from Seattle to London, returning Tue., Oct. 14, priced at CA $792 found 2 days ago
Wed., Sep. 24 - Wed., Oct. 1
SEA
Seattle
LHR
London
CA $869 Roundtrip, found 2 days ago
CA $869
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 1, priced at CA $869 found 2 days ago
Wed., Aug. 27 - Wed., Sep. 3
SEA
Seattle
LHR
London
CA $894 Roundtrip, found 2 days ago
CA $894
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Wed., Aug. 27 from Seattle to London, returning Wed., Sep. 3, priced at CA $894 found 2 days ago
Wed., Sep. 24 - Wed., Oct. 15
SEA
Seattle
LHR
London
CA $904 Roundtrip, found 2 days ago
CA $904
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 15, priced at CA $904 found 2 days ago
Mon., Aug. 25 - Wed., Sep. 3
SEA
Seattle
LHR
London
CA $915 Roundtrip, found 2 days ago
CA $915
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Mon., Aug. 25 from Seattle to London, returning Wed., Sep. 3, priced at CA $915 found 2 days ago
Wed., Sep. 24 - Wed., Oct. 1
SEA
Seattle
LHR
London
CA $915 Roundtrip, found 2 days ago
CA $915
Roundtrip
found 2 days ago
Select Delta flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 1, priced at CA $915 found 2 days ago
Wed., Sep. 24 - Wed., Oct. 15
SEA
Seattle
LHR
London
CA $915 Roundtrip, found 2 days ago
CA $915
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 15, priced at CA $915 found 2 days ago
Mon., Oct. 6 - Tue., Oct. 14
SEA
Seattle
LHR
London
CA $916 Roundtrip, found 2 days ago
CA $916
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Mon., Oct. 6 from Seattle to London, returning Tue., Oct. 14, priced at CA $916 found 2 days ago
Sat., Oct. 11 - Thu., Oct. 23
SEA
Seattle
LHR
London
CA $952 Roundtrip, found 16 hours ago
CA $952
Roundtrip
found 16 hours ago
Select JetBlue Airways flight, departing Sat., Oct. 11 from Seattle to London, returning Thu., Oct. 23, priced at CA $952 found 16 hours ago
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.