Travel with Air Canada from Seattle to London, UK (SEA - LHR)

*Fares displayed have been collected within the last 48 hours and may no longer be available at the time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.

Flights between Seattle and London, UK - our lowest fares in cash

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Mar 2025
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Apr 2025
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May 2025
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CAD 147
CAD 785
Displaying fares for March-2025
27

Th

MAR

29

Tu

12

Mo

05

Th

08

Tu

06

We

21

Su

03

Fr

01

Sa

NOV

02

Tu

06

Tu

04

We

RangeCAD 147-CAD 785
Book flights from Seattle (SEA) to London, UK (LHR) | Air Canada

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