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 $802 round trip and CA $301 one way. Prices and availability subject to change. Additional terms may apply.

Wed., Aug. 13 - Tue., Sep. 2
SEA
Seattle
LHR
London
CA $802 Roundtrip, found 2 days ago
CA $802
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed., Aug. 13 from Seattle to London, returning Tue., Sep. 2, priced at CA $802 found 2 days ago
Tue., Oct. 14 - Wed., Nov. 26
SEA
Seattle
LHR
London
CA $803 Roundtrip, found 3 days ago
CA $803
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Tue., Oct. 14 from Seattle to London, returning Wed., Nov. 26, priced at CA $803 found 3 days ago
Mon., Oct. 20 - Wed., Nov. 5
SEA
Seattle
LHR
London
CA $804 Roundtrip, found 4 days ago
CA $804
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Mon., Oct. 20 from Seattle to London, returning Wed., Nov. 5, priced at CA $804 found 4 days ago
Thu., Jan. 8 - Mon., Jan. 12
SEA
Seattle
LHR
London
CA $831 Roundtrip, found 10 hours ago
CA $831
Roundtrip
found 10 hours ago
Select Icelandair flight, departing Thu., Jan. 8 from Seattle to London, returning Mon., Jan. 12, priced at CA $831 found 10 hours ago
Tue., Oct. 7 - Tue., Oct. 21
SEA
Seattle
LHR
London
CA $843 Roundtrip, found 13 hours ago
CA $843
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue., Oct. 7 from Seattle to London, returning Tue., Oct. 21, priced at CA $843 found 13 hours ago
Tue., Feb. 10 - Tue., Feb. 17
SEA
Seattle
LHR
London
CA $844 Roundtrip, found 2 days ago
CA $844
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Tue., Feb. 10 from Seattle to London, returning Tue., Feb. 17, priced at CA $844 found 2 days ago
Tue., Oct. 7 - Tue., Oct. 21
SEA
Seattle
LHR
London
CA $853 Roundtrip, found 13 hours ago
CA $853
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Tue., Oct. 7 from Seattle to London, returning Tue., Oct. 21, priced at CA $853 found 13 hours ago
Sun., Aug. 17 - Tue., Sep. 30
SEA
Seattle
LHR
London
CA $889 Roundtrip, found 3 days ago
CA $889
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Sun., Aug. 17 from Seattle to London, returning Tue., Sep. 30, priced at CA $889 found 3 days ago
Sun., Nov. 2 - Tue., Nov. 11
SEA
Seattle
LHR
London
CA $922 Roundtrip, found 11 hours ago
CA $922
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Sun., Nov. 2 from Seattle to London, returning Tue., Nov. 11, priced at CA $922 found 11 hours ago
Tue., Oct. 7 - Tue., Oct. 21
SEA
Seattle
LHR
London
CA $923 Roundtrip, found 13 hours ago
CA $923
Roundtrip
found 13 hours ago
Select Swiss International Air Lines flight, departing Tue., Oct. 7 from Seattle to London, returning Tue., Oct. 21, priced at CA $923 found 13 hours ago

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle (SEA) today with the cheap prices from Travelocity!

Popular Flight Routes from London (LHR)

Travelers at LHR love to visit these top cities. Roam to the top destinations from London(LHR) today with the cheap prices from Travelocity!

*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.