Seattle to Toronto (SEA-YYZ): nonstop upgrade & award space

Alaska Airlines and Air Canada fly nonstop between Seattle (SEA) and Toronto (YYZ), roughly 14 times a week. Long-haul cabins on a corridor this busy are large but never idle: premium cabin inventory reshuffles around every schedule change, and the best dates go first. 2LNR tracks confirmed upgrade and award space on Alaska Airlines, on every SEA to YYZ departure, so you know which flights have space before you book.

Schedule last confirmed September 6, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

See SEA to YYZ on the interactive map Get started free

Nonstop flights a week

2,055 mi

Nonstop distance

Free

To get started

Seattle to Toronto flight schedule

Scheduled nonstop departures for SEA to YYZ, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Seattle (SEA) to Toronto (YYZ)
Date	Flight	Airline	Departs SEA	Arrives YYZ	Duration	Aircraft
Tue, Sep 8	AS 385	Alaska Airlines, Inc.	07:52	15:45	4h 53m	73J
Tue, Sep 8	AC 540	Air Canada	08:00	15:41	4h 41m	223
Wed, Sep 9	AS 385	Alaska Airlines, Inc.	07:52	15:45	4h 53m	73J
Wed, Sep 9	AC 540	Air Canada	08:00	15:41	4h 41m	223
Thu, Sep 10	AS 385	Alaska Airlines, Inc.	07:52	15:45	4h 53m	7M9
Thu, Sep 10	AC 540	Air Canada	08:00	15:41	4h 41m	223
Fri, Sep 11	AS 385	Alaska Airlines, Inc.	07:52	15:45	4h 53m	7M9
Fri, Sep 11	AC 540	Air Canada	08:00	15:41	4h 41m	223
Sat, Sep 12	AS 385	Alaska Airlines, Inc.	07:52	15:45	4h 53m	7M9
Sat, Sep 12	AC 540	Air Canada	08:00	15:41	4h 41m	223
Sun, Sep 13	AS 385	Alaska Airlines, Inc.	07:52	15:45	4h 53m	7M9
Sun, Sep 13	AC 540	Air Canada	08:00	15:41	4h 41m	223
Mon, Sep 14	AS 385	Alaska Airlines, Inc.	07:52	15:45	4h 53m	73J
Mon, Sep 14	AC 540	Air Canada	08:00	15:41	4h 41m	223

Showing all 14 scheduled SEA to YYZ departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every SEA to YYZ date on the interactive map

Confirmed upgrade & award space on SEA to YYZ departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Seattle to Toronto to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each SEA to YYZ departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SEA to YYZ on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seattle to Toronto nonstop

Carriers operating SEA to YYZ nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See SEA to YYZ on the interactive map →

Frequently asked questions about SEA to YYZ

How far is Toronto from Seattle?

SEA to YYZ covers about 2,055 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.

Which airlines fly nonstop from SEA to YYZ?

Alaska Airlines and Air Canada fly the route nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines.

How many flights a week are there from SEA to YYZ?

About 14 nonstop flights a week run between Seattle and Toronto in the current schedule, operated by Alaska Airlines and Air Canada. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from SEA to YYZ depart?

Scheduled SEA to YYZ nonstops in the next 7 days with service leave between 07:52 and 08:00, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

How do I check upgrade or award availability on SEA to YYZ?

Open the SEA to YYZ route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss SEA to YYZ upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free