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 $774 round trip and CA $284 one way. Prices and availability subject to change. Additional terms may apply.

Tue., Nov. 4 - Tue., Nov. 11
SEA
Seattle
LHR
London
CA $774 Roundtrip, found 4 days ago
CA $774
Roundtrip
found 4 days ago
Select Icelandair flight, departing Tue., Nov. 4 from Seattle to London, returning Tue., Nov. 11, priced at CA $774 found 4 days ago
Tue., Nov. 4 - Tue., Nov. 11
SEA
Seattle
LHR
London
CA $776 Roundtrip, found 4 days ago
CA $776
Roundtrip
found 4 days ago
Select Icelandair flight, departing Tue., Nov. 4 from Seattle to London, returning Tue., Nov. 11, priced at CA $776 found 4 days ago
Mon., Aug. 11 - Tue., Aug. 26
SEA
Seattle
LHR
London
CA $811 Roundtrip, found 5 days ago
CA $811
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Mon., Aug. 11 from Seattle to London, returning Tue., Aug. 26, priced at CA $811 found 5 days ago
Sun., Aug. 17 - Tue., Sep. 30
SEA
Seattle
LHR
London
CA $854 Roundtrip, found 6 days ago
CA $854
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Sun., Aug. 17 from Seattle to London, returning Tue., Sep. 30, priced at CA $854 found 6 days ago
Sun., Aug. 17 - Tue., Sep. 30
SEA
Seattle
LHR
London
CA $865 Roundtrip, found 6 days ago
CA $865
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Sun., Aug. 17 from Seattle to London, returning Tue., Sep. 30, priced at CA $865 found 6 days ago
Mon., Aug. 25 - Mon., Sep. 8
SEA
Seattle
LHR
London
CA $871 Roundtrip, found 6 days ago
CA $871
Roundtrip
found 6 days ago
Select Delta flight, departing Mon., Aug. 25 from Seattle to London, returning Mon., Sep. 8, priced at CA $871 found 6 days ago
Mon., Aug. 25 - Mon., Sep. 8
SEA
Seattle
LHR
London
CA $873 Roundtrip, found 6 days ago
CA $873
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Mon., Aug. 25 from Seattle to London, returning Mon., Sep. 8, priced at CA $873 found 6 days ago
Tue., Mar. 17 - Fri., Mar. 27
SEA
Seattle
LHR
London
CA $896 Roundtrip, found 4 days ago
CA $896
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue., Mar. 17 from Seattle to London, returning Fri., Mar. 27, priced at CA $896 found 4 days ago
Sat., Sep. 6 - Thu., Sep. 25
SEA
Seattle
LHR
London
CA $916 Roundtrip, found 1 day ago
CA $916
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sat., Sep. 6 from Seattle to London, returning Thu., Sep. 25, priced at CA $916 found 1 day ago
Mon., Aug. 25 - Mon., Sep. 8
SEA
Seattle
LHR
London
CA $934 Roundtrip, found 6 days ago
CA $934
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon., Aug. 25 from Seattle to London, returning Mon., Sep. 8, priced at CA $934 found 6 days 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.