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 6 days ago
CA $774
Roundtrip
found 6 days ago
Select Icelandair flight, departing Tue., Nov. 4 from Seattle to London, returning Tue., Nov. 11, priced at CA $774 found 6 days ago
Mon., Oct. 6 - Tue., Oct. 14
SEA
Seattle
LHR
London
CA $864 Roundtrip, found 15 hours ago
CA $864
Roundtrip
found 15 hours ago
Select Aer Lingus flight, departing Mon., Oct. 6 from Seattle to London, returning Tue., Oct. 14, priced at CA $864 found 15 hours ago
Wed., Sep. 24 - Wed., Oct. 1
SEA
Seattle
LHR
London
CA $869 Roundtrip, found 6 hours ago
CA $869
Roundtrip
found 6 hours ago
Select Scandinavian Airlines flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 1, priced at CA $869 found 6 hours ago
Wed., Aug. 27 - Wed., Sep. 3
SEA
Seattle
LHR
London
CA $894 Roundtrip, found 9 hours ago
CA $894
Roundtrip
found 9 hours ago
Select Lufthansa flight, departing Wed., Aug. 27 from Seattle to London, returning Wed., Sep. 3, priced at CA $894 found 9 hours ago
Wed., Sep. 24 - Wed., Oct. 15
SEA
Seattle
LHR
London
CA $904 Roundtrip, found 8 hours ago
CA $904
Roundtrip
found 8 hours ago
Select Virgin Atlantic flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 15, priced at CA $904 found 8 hours ago
Mon., Aug. 25 - Wed., Sep. 3
SEA
Seattle
LHR
London
CA $915 Roundtrip, found 1 hour ago
CA $915
Roundtrip
found 1 hour ago
Select Virgin Atlantic flight, departing Mon., Aug. 25 from Seattle to London, returning Wed., Sep. 3, priced at CA $915 found 1 hour ago
Wed., Sep. 24 - Wed., Oct. 1
SEA
Seattle
LHR
London
CA $915 Roundtrip, found 6 hours ago
CA $915
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 1, priced at CA $915 found 6 hours ago
Wed., Sep. 24 - Wed., Oct. 15
SEA
Seattle
LHR
London
CA $915 Roundtrip, found 8 hours ago
CA $915
Roundtrip
found 8 hours ago
Select Air Canada flight, departing Wed., Sep. 24 from Seattle to London, returning Wed., Oct. 15, priced at CA $915 found 8 hours ago
Mon., Oct. 6 - Tue., Oct. 14
SEA
Seattle
LHR
London
CA $916 Roundtrip, found 15 hours ago
CA $916
Roundtrip
found 15 hours ago
Select Swiss International Air Lines flight, departing Mon., Oct. 6 from Seattle to London, returning Tue., Oct. 14, priced at CA $916 found 15 hours ago
Mon., Oct. 6 - Tue., Oct. 14
SEA
Seattle
LHR
London
CA $952 Roundtrip, found 15 hours ago
CA $952
Roundtrip
found 15 hours ago
Select JetBlue Airways flight, departing Mon., Oct. 6 from Seattle to London, returning Tue., Oct. 14, priced at CA $952 found 15 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.