--- title: "Seattle (SEA) to Toronto (YYZ) flights: who flies it" description: "Alaska Airlines and Air Canada fly nonstop from SEA to YYZ, about 14 flights a week, covering 2,055 miles. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/sea-yyz" url: "https://2lnr.com/routes/sea-yyz.md" date_modified: "2026-10-18T05:10:47Z" --- # Seattle to Toronto (SEA-YYZ): nonstop upgrade & award space Air Canada and Alaska Airlines fly nonstop between Seattle (SEA) and Toronto (YYZ), roughly 14 times a week. The timetable below shows the nonstop scheduled at 4h 40m to 4h 45m for the 2,055 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See SEA to YYZ on the interactive map [Get started free](https://2lnr.com/login) 14 Flights a week, 4-week average 4h 40m to 4h 45m Scheduled flight time 2,055 mi Nonstop distance Free To get started ## Seattle to Toronto flight schedule Scheduled nonstop departures for SEA to YYZ starting October 23, 2026, last checked against our schedule feed on October 18, 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 | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | AC 540 | Air Canada | 08:00 | 15:41 | 4h 41m | [Airbus A220-300](https://2lnr.com/seatmaps/ac/a220-300.md) | | Fri, Oct 23 | AS 385 | Alaska Airlines, Inc. | 08:00 | 15:45 | 4h 45m | [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) | | Sat, Oct 24 | AC 540 | Air Canada | 08:00 | 15:41 | 4h 41m | Airbus A220-300 | | Sat, Oct 24 | AS 385 | Alaska Airlines, Inc. | 08:00 | 15:45 | 4h 45m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) | | Sun, Oct 25 | AC 540 | Air Canada | 07:45 | 15:25 | 4h 40m | Airbus A220-300 | | Sun, Oct 25 | AS 385 | Alaska Airlines, Inc. | 08:20 | 16:05 | 4h 45m | Boeing 737-900 | | Mon, Oct 26 | AC 540 | Air Canada | 07:45 | 15:25 | 4h 40m | Airbus A220-300 | | Mon, Oct 26 | AS 385 | Alaska Airlines, Inc. | 08:20 | 16:05 | 4h 45m | Boeing 737-900 | | Tue, Oct 27 | AC 540 | Air Canada | 07:45 | 15:25 | 4h 40m | Airbus A220-300 | | Tue, Oct 27 | AS 385 | Alaska Airlines, Inc. | 08:20 | 16:05 | 4h 45m | Boeing 737-900 | | Wed, Oct 28 | AC 540 | Air Canada | 07:45 | 15:25 | 4h 40m | Airbus A220-300 | | Wed, Oct 28 | AS 385 | Alaska Airlines, Inc. | 08:20 | 16:05 | 4h 45m | Boeing 737-900 | | Thu, Oct 29 | AC 540 | Air Canada | 07:45 | 15:25 | 4h 40m | Airbus A220-300 | | Thu, Oct 29 | AS 385 | Alaska Airlines, Inc. | 08:20 | 16:05 | 4h 45m | Boeing 737-900 | Showing all 14 scheduled SEA to YYZ departures across 7 days with service, starting October 23, 2026. 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 hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every SEA to YYZ date on the interactive map ## Aircraft on the Seattle to Toronto nonstop In the schedule table on this page, Air Canada flies the [Airbus A220-300](https://2lnr.com/seatmaps/ac/a220-300.md), and Alaska Airlines flies the [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) and the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## 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. Alaska Airlines award space was open on 5 of the 14 Seattle to Toronto departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026. ### See real availability Confirmed upgrade or award seats by date on the SEA to YYZ departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're 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. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Air Canada (AC) route map](https://2lnr.com/routes/airlines/ac.md)\ [The aircraft AC flies](https://2lnr.com/seatmaps/ac.md) - [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\ [The aircraft AS flies](https://2lnr.com/seatmaps/as.md) See SEA to YYZ on the interactive map → ## Frequently asked questions about SEA to YYZ **How long is the flight from Seattle (SEA) to Toronto (YYZ)?** Scheduled flight times from Seattle (SEA) to Toronto (YYZ) run from 4h 40m to 4h 45m across the departures in the schedule table on this page. The nonstop covers about 2,055 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SEA to YYZ?** Air Canada and Alaska Airlines fly SEA to YYZ 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 (SEA) and Toronto (YYZ) in the current schedule, operated by Air Canada and Alaska Airlines. 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 07:45 and 08:20, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate SEA to YYZ nonstop?** In the schedule table on this page, SEA to YYZ nonstops fly as AC 540 on Air Canada and AS 385 on Alaska Airlines. The table lists each departure by date with its times 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. Flying the other way? See [YYZ to SEA upgrade and award space](https://2lnr.com/routes/yyz-sea.md). Award seats rather than schedules? See [Alaska Airlines award availability](https://2lnr.com/awards/as.md). Looking beyond this route? See [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md), or [every route from Toronto (YYZ)](https://2lnr.com/routes/yyz.md). Nonstops to Toronto (YYZ) from other airports within 150 miles of Seattle (SEA): - [Victoria (YYJ) to Toronto (YYZ)](https://2lnr.com/routes/yyj-yyz.md), 97 miles from SEA - [Vancouver (YVR) to Toronto (YYZ)](https://2lnr.com/routes/yvr-yyz.md), 127 miles from SEA Distances are great-circle between the airports, not driving distance. - [How Alaska upgrades clear](https://2lnr.com/about/as/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss SEA to YYZ upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)