SEA → LON from $603 round-trip

Flight deal

SEA → LON from $603 round-trip

SEA → LONUSD 603Air CanadaeconomyRound-tripFair · 31/100

Score basis: 22% below the 13-fare median of $771.

Live fare — price verified 24 min ago.

Travel: 2026-10-06 – 2026-10-13
Book by: 8/28/2026
Booked via: Travelpayouts partner feed
Operated by: Air Canada

Book this flight Add a hotel Flight + hotel

Also check on Kiwi

Opens a Kiwi.com search for this route and dates — prices and availability there are set by Kiwi and may differ from the fare above.

This page contains affiliate links. We may earn a commission at no cost to you.

Share Email

More live deals on this route

SEA → LAX

SEA → LAX from $85 round-trip

USD 85

SEA → ONT

SEA → ONT from $198 round-trip

USD 198

SEA → HOU

SEA → HOU from $310 round-trip

USD 310

SEA → MIA

SEA → MIA from $327 round-trip

USD 327

IAD → LON

IAD → LON from $576 round-trip

USD 576

SEA → TYO

SEA → TYO from $873 round-trip

USD 873

Last verified: 8/26/2026, 9:10:01 AM · Source: travelpayouts_api