Explore Air Canada flights from Seattle to United Kingdom from CAD 1,177*
*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 United Kingdom - our lowest fares in cash
Seattle (SEA)to
London, UK (LHR)*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.
Flights between Seattle and United Kingdom - our lowest fares in points
From | To | Fare Type | Departure | Price |
|---|---|---|---|---|
| Seattle (SEA) | London, UK (LHR) | Round-trip / Economy | Apr 01, 2026 - Apr 08, 2026 | From 78,000 pts + CAD 106 Viewed: 23 hours ago |
*Points displayed do not reflect preferred pricing for Aeroplan Elite Status Members and/or Aeroplan Credit Cardholders. Prices have been collected within the past 48 hrs and may no longer be available at time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.