Direct flights from Seattle to Toronto INTL
14 nonstop flights a week on 2 airlines. Zero layovers — one hop from SEA to YYZ.
Flight time: about 4h1m nonstop
Which days does it fly?
When does it fly?
Departure times in Seattle local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Air Canada ACA540 | 8:02a | 4h | Wed |
| Alaska ASA385 | 8:02a | 3h58m | Tue, Sat, Sun |
| Alaska ASA385 | 8:11a | 4h17m | Mon, Wed, Fri |
| Air Canada ACA540 | 8:12a | 3h51m | Thu |
| Alaska ASA385 | 8:15a | 3h44m | Thu |
| Air Canada ACA540 | 8:20a | 4h4m | Tue, Fri, Sat |
| Air Canada ACA540 | 8:34a | 4h1m | Sun |
| Air Canada ACA540 | 8:38a | 4h51m | Mon |
The route
One hop: SEA → YYZDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Seattle (SEA) to Toronto (YYZ)
Seattle–Tacoma International Airport (SEA) has 14 nonstop flights a week to Toronto (YYZ), operated by Air Canada and Alaska. No layovers, no connections — one hop out of SEA and you're there.
This route flies every day of the week, so any travel day works. Toronto is an international destination — don't forget your passport. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Seattle to Toronto?
The nonstop flight from Seattle (SEA) to Toronto (YYZ) takes about 4h1m in the air, based on recently observed nonstop departures.