Toronto to Seattle (YYZ–SEA) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
YYZ–SEA is served by 2 airlines with nonstop service. Air Canada and Alaska Airlines lead the route. The flight covers 2,055 miles in approximately 5h 5m. Beyond nonstop, 102 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AC Air Canada Also: SN, UA | 10 | 223, BCS3 | 5h05-5h23 | Star Alliance | SN, UA | |
| AS Alaska Airlines | 7 | B39M | 5h28 | Oneworld | – |
Weekly Schedule Pattern
Connection Landscape
Travel Essentials
YYZ: EDT · SEA: PDT
When it's 6:00 PM in Toronto, it's 3:00 PM in Seattle.
Canadian citizens do not need a visa or ESTA to enter the United States for tourism or business stays up to 6 months. A valid Canadian passport is required for air travel. Land and sea crossings also accept a NEXUS card, enhanced driver's license, or FAST card. At the border, officers determine the length of stay and may ask for proof of ties to Canada and a return plan.
The UP Express train runs from Union Station (downtown Toronto) to Terminal 1 in 25 minutes (CAD $12.35). Trains depart every 15 minutes during peak hours, every 30 minutes off-peak and overnight. Highway 427 and the 401 are heavily congested during rush hours.
Taxis and ride-hail from downtown cost CAD $50–70 and take 25–60 minutes depending on traffic. MiWay and Brampton Transit buses serve the airport from the western suburbs. Long-term parking is available in the Viscount Road lots with free shuttle service.
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
YYZ–SEA Quick Facts
Frequently Asked Questions
Flights from YYZ to SEA
Toronto Pearson International Airport (YYZ) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Air Canada and Alaska Airlines. With 28 weekly departures, this is a heavily served route.
YYZ to SEA Flight Duration and Schedule
Nonstop flight time from YYZ to SEA ranges from 5 hours 5 minutes to 5 hours 28 minutes. The route covers a distance of 2,055 miles (3,307 km). There are approximately 28 weekly flights outbound and 36 return, totaling 64 flights per week in both directions.
Connecting Options and Alternatives
102 one-stop connections are available, with the fastest taking approximately 4 hours via BFI. Two-stop connections are also available via intermediate hubs.