The Seattle–Toronto route
Seattle to Toronto is a cross-border US–Canada city pair (SEA–YYZ, about 2,055 miles). Nonstop SEA–YYZ is often on the schedule, about 4.5 hours airborne over 2,055 miles. Carry a passport. Totals below are USD guides, not CAD.
For SEA–YYZ we show about $169 on the low end and around $305 as a more typical one-way economy total, USD, last reviewed August 2026. A $169 one-way is a sale-shaped guide, not a fare you can screenshot and demand. Taxes, bags, and seats change what you pay on the seller site.
Search SEA to YYZ on Azurovia, compare airline-direct and travel-site totals on the same flights, then finish with the seller. We do not ticket. Keep their confirmation for changes.
Distance and time SEA–YYZ
Great-circle distance SEA–YYZ is about 2,055 miles. Block time on a nonstop is typically near 4.5 hours; wind, routing, and which runway you use still move the clock. Connections on the same city pair add layover time on top of that flying.
Toronto is about 3 hours ahead of Seattle on standard time (America/Los_Angeles vs America/Toronto). Arrival clocks on YYZ are local. That matters more on this pair than on a same-zone hop.
When SEA–YYZ has a nonstop, that is usually the cleanest product. One-stop options still appear — they are worth opening only if the USD total is materially lower after you count the extra ground time.
Airports for Seattle to Toronto
You depart Seattle-Tacoma International in Seattle, United States, and arrive at Toronto Pearson International in Toronto, Canada. SEA is the origin code we use on this guide; YYZ is the arrival code. If you need a visa or an ESTA, that is between you and the destination government — Azurovia does not ticket and does not process immigration.
SEA is the only origin code we list in this metro. YYZ is the arrival code we treat as primary for Toronto. A cheaper nearby airport only wins if the transfer still fits your plan. Search with “include nearby airports” when you want those codes in one results list.
Airport pages: SEA Seattle-Tacoma International · YYZ Toronto Pearson International
City hubs: Flights from Seattle · Flights to Toronto
Bags on SEA–YYZ
On SEA–YYZ, bag rules follow the seller, not Azurovia. Compare the same cabin and the same bags across airline-direct and travel-site totals.
Airlines often shown
WestJet is among the names that commonly appear on SEA–YYZ, alongside Air Canada, United, Delta. That is who often operates or sells this city pair in our catalog, not a daily guarantee. Live search is the inventory that exists for your dates.
When people fly
On Seattle–Toronto, demand is often softer in Apr and May, with Sep and Oct also worth checking. US holidays still reprice this pair. Move a day on the results strip before you assume the first date you typed is the cheapest.
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We’ll email you if live fares on this city pair drop. Search with dates for a specific trip.
Questions about this city pair
How long is the flight from Seattle to Toronto?
Nonstop SEA–YYZ is typically about 4.5 hours over roughly 2,055 miles. Connections take longer; compare total trip time on the results page.
When are Seattle to Toronto fares often lower?
Demand is usually softer in Apr and May on this route, but live prices move daily. Search a few nearby dates rather than assuming a season is always cheapest.
Which airlines fly Seattle to Toronto?
Sellers commonly show WestJet, Air Canada, United, Delta on this city pair. The set on any given day depends on schedule and which travel sites return a fare.
What do Seattle–Toronto tickets usually cost?
Guide one-way economy totals cluster around $305, with sales near $169, in USD. Those are not a quote — live search is the price that matters.
Is SEA–YYZ the only airport pair for this trip?
This guide uses SEA and YYZ as the primary codes. If a seller offers another airport, it will show on live results when you include nearby airports.
Do I book Seattle–Toronto with Azurovia?
No. Azurovia is a US metasearch. You compare airline and travel-site totals here, then complete the ticket with the seller you choose.
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