Cheap flights from Seattle to Toronto

Cheapest current fares: $136 in June 2026, 3,307 km direct flight in ~3h 53m.

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Live fares · SEA → YYZ

Cheapest month-by-month fares

Lowest available fare per calendar month from Seattle (SEA) to Toronto (YYZ). Refreshed daily.

Seattle (SEA) → Toronto (YYZ)

  1. June 2026 $136

Frequently asked questions

  • What is the cheapest month to fly from Seattle to Toronto?

    Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Seattle (SEA) to Toronto (YYZ), with fares starting from $136.

  • What is the lowest current fare from SEA to YYZ?

    The lowest currently-listed fare from Seattle (SEA) to Toronto (YYZ) is $136 on 2026-06-20.

  • How long is the flight from Seattle to Toronto?

    Direct flights from SEA to YYZ cover approximately 3,307 km (2,055 miles), with an estimated flight time of 3h 53m. Operating airlines: AC, AS.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: SEA → YYZ Cheapest month to fly to Toronto All flights from Seattle All flights to Toronto Flights to Canada Visa-free with USA passport AC routes AS routes