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Flights from Seattle to Toronto (SEA - YTO)
4 August → 25 August
Only 3 seats left
$410.14
20 May → 26 May
Only 5 seats left
$1050.38
Flights between Seattle and Toronto vary depending on seasonality, demand, and airline competition. Our data-driven system analyzes millions of fares to help you book at the right time.
Find the best deals from Seattle to Toronto. Prices start from $410.14.
Best deal: $410.14 on 2026-08-04
Flight prices from Seattle to Toronto are currently .
Booking early can help you save more. Based on recent trends, mid-week flights tend to be cheaper than weekends.
The lowest fares are typically found in August 2026, with the best deals around TUESDAY, 4 Aug. Flying on TUESDAYs can help you save more, with prices starting from $410.14.
Smart Tip: Based on recent data, the cheapest flights from SEA to YTO are typically available on Tuesday, 4 Aug.
We analyze millions of flight prices daily to help you find the cheapest flights from Seattle to Toronto . Our smart algorithms identify the best time to book, helping you save more on every trip.
Best deal: $410.14 on AUGUST 4, 2026
TUESDAY has the lowest fares starting at $410.14
Average fare is around $410.14
Airline WS offers fares starting at $410.14
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