Cheap flights from Seattle to Toronto

Seattle-Tacoma
SEA
Toronto
YTO

Flight deals from Seattle to Toronto

Below you can see the best deals on flights Seattle — Toronto for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 9 September, from $167.

Top 10 cheap flights from Seattle to Toronto

F9
PD
$ 213

Seattle — Toronto

21:36—06:39
7 Sep 2026
7 h 1 m
1 stop
WS
WS
$ 227

Seattle — Toronto

10:30—21:15
28 Aug 2026
5 h 35 m
1 stop
AC
AC
AC
$ 241

Seattle — Toronto

10:40—00:58
29 Aug 2026
6 h 20 m
2 stops
AC
AC
AC
$ 241

Seattle — Toronto

05:50—17:10
5 Sep 2026
6 h 20 m
2 stops
AC
AC
AC
$ 241

Seattle — Toronto

19:20—06:42
5 Sep 2026
6 h 26 m
2 stops
AC
AC
AC
$ 241

Seattle — Toronto

05:50—17:30
5 Sep 2026
6 h 20 m
2 stops
AC
AC
AC
$ 241

Seattle — Toronto

10:40—23:11
5 Sep 2026
6 h 28 m
2 stops
AC
AC
AC
$ 241

Seattle — Toronto

05:50—19:31
5 Sep 2026
6 h 30 m
2 stops
AC
AC
AC
$ 241

Seattle — Toronto

10:40—00:58
5 Sep 2026
6 h 20 m
2 stops
AC
AC
AC
$ 241

Seattle — Toronto

05:50—17:30
2 Sep 2026
6 h 20 m
2 stops

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Seattle — Toronto flight

Looking for cheap flights from Seattle to Toronto? Compare fares from different airlines, check the flight schedule and travel time — and book your Seattle — Toronto ticket online at the best price.

The route has direct flights — around 43 flights per week, flights are operated by Alaska Airlines, Air Canada, Qatar Airways, a nonstop flight takes about 4 h 39 min, the distance between the cities is around 3,334 km.

Planning your trip? You may find our Toronto travel guide, how to get from the airport into town and Toronto weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $167Min. price
SeptemberCheapest
MarchPeak season
YesDirect flights
3,334 kmDistance
4 h 39 minTravel time
3Airlines
43 / wkFlights

Flight schedule from Seattle to Toronto

The table shows direct flights from Seattle to Toronto on the selected date. The flight takes approximately 4 h 39 min. Regular flights are operated by Alaska Airlines, Air Canada and Qatar Airways. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at Pearson International Airport, Billy Bishop Toronto City Airport and Hamilton Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 08 Aug 2026

Flight ticket prices by day: Seattle — Toronto

Below is a calendar of the lowest flight ticket prices for Seattle — Toronto by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $167 in September, and the most expensive are around $253 in March. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Seattle to Toronto by month. Tickets are usually cheapest in November (around $163) and priciest in July (about $268) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$182lowMay$210mediumSep$220medium
Feb$172lowJun$249highOct$201medium
Mar$186lowJul$268highNov$163low
Apr$201mediumAug$258highDec$263high

Some values are estimated based on seasonality.

When to fly

Weather in Toronto: it is warmest in July (up to 26 °C on average) and coolest in January (around 0 °C). The driest month is September.

Tickets are usually cheapest in September and most expensive in March. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Toronto

Dry and wet days · Toronto

Wind speed and direction · Toronto

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How to get the best deal on a Seattle — Toronto ticket

  • Book ahead: fares for Seattle — Toronto are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Seattle is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Toronto is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Seattle — Toronto route are operated by 3 airlines; Alaska Airlines runs the most flights (around 65% of all flights). Compare carriers, flight shares and schedules below.

  • Alaska AirlinesAS
    9x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight SEA → YYZ9x/week
      Duration
      4h 45m
      Days
      MTWTFSS
    65.1%Open →
  • Air CanadaAC
    5x/week
    WebsiteFleet: 20346M pax/year
    • Direct flight SEA → YYZ5x/week
      Duration
      4h 45m
      Days
      MTWTFSS
    32.6%Open →
  • Qatar AirwaysQR
    1x/week
    WebsiteFleet: 26640M pax/year
    • Direct flight SEA → YYZ1x/week
      Duration
      4h 46m
      Days
      MTWTFSS
    2.3%Open →

Cities and airports on the Seattle — Toronto route

Flights Seattle — Toronto depart from Seattle-Tacoma International Airport and Paine Field and arrive at Pearson International Airport, Billy Bishop Toronto City Airport, Hamilton Airport and Region of Waterloo International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Toronto

YTO
Canada
About the cityHow to get thereWeatherAll about the country Canada
Departure airports
Arrival airports

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Frequently asked questions about the Seattle — Toronto flight

How long is the flight from Seattle to Toronto?

A nonstop Seattle — Toronto flight takes about 4 h 39 min — the distance between the cities is around 3,334 km.

How far is it from Seattle to Toronto?

The distance from Seattle to Toronto is about 3,334 km, which a nonstop flight covers in around 4 h 39 min.

Are there direct flights from Seattle to Toronto?

Yes, there are nonstop flights Seattle — Toronto — around 43 flights per week.

Which airlines fly from Seattle to Toronto?

Airlines operating Seattle — Toronto include Alaska Airlines, Air Canada, Qatar Airways. See the full list with schedules in the "Airlines" section on this page.

Which airports do Seattle — Toronto flights use?

Flights from Seattle depart from Seattle-Tacoma International Airport, Paine Field, and arrive at Pearson International Airport, Billy Bishop Toronto City Airport, Hamilton Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Seattle to Toronto?

The price of a Seattle — Toronto ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in March. Tickets typically cost between $167 and $253. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Seattle — Toronto?

Flights Seattle — Toronto are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Seattle to Toronto?

To catch a low fare Seattle — Toronto, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Seattle

See all
Los AngelesAnchorageVancouverSan FranciscoPhoenixSan DiegoSan JoseSpokanePortlandSanta AnaNew York CityBoiseDenverChicagoDallasSalt Lake CitySacramentoLas VegasRedmondBostonAtlantaHonoluluWashington, D.C.MinneapolisPascoAustinBurbankFairbanksEugeneJuneauNashvilleHoustonCalgaryBozemanDetroitPalm SpringsMissoulaMedfordRenoOrlando

Where else you can fly from Toronto

See all
New York CityMontrealChicagoOttawaVancouverCalgaryHalifaxWashington, D.C.EdmontonDetroitWinnipegBostonLondonAtlantaSt. John'sQuebec CityMinneapolisPhiladelphiaSaskatoonThunder BayOrlandoCancunMonctonCharlotteLos AngelesDallasSan FranciscoReginaLas VegasKelownaNashvilleCharlottetownFort LauderdaleTampaMexico CityLondonVictoriaFrankfurt am MainDublinPunta Cana

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