Home / Routes / CYYZ → KSEA1,021 scheduled

The route from Lester B. Pearson International Airport (CYYZ) in Toronto to Seattle Tacoma International Airport (KSEA) in Seattle. SkyMeter tracks roughly 1,021 scheduled flights on this route across 9 carriers. The most active operator is ASA (ASA). Average block time is 4h 28m. Departures average 38 minutes off schedule, with 57% running more than 15 minutes late. The most common aircraft on this route is the AIRBUS-BOMBARDIER Airbus A220-300.

Scheduled
1,021
last 543 days
ADS-B observed
121
Airlines
9
Avg dep delay
38m
Late >15 min
56.6%
Cancel rate
1.47%

Recent observed flights

From ADS-B trace data

2026-10-25 21:13  →  2026-10-26 02:13  ·  5h 0m
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2026-10-24 20:53  →  2026-10-25 02:01  ·  5h 7m
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2026-10-23 21:57  →  2026-10-24 03:58  ·  6h 0m
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2026-10-23 20:51  →  2026-10-24 02:01  ·  5h 9m
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2026-10-22 21:00  →  2026-10-23 04:33  ·  7h 33m
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2026-10-22 20:47  →  2026-10-23 02:16  ·  5h 28m
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2026-10-18 00:04  →  2026-10-18 05:22  ·  5h 17m
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2026-10-17 20:53  →  2026-10-18 02:04  ·  5h 11m
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2026-10-16 22:45  →  2026-10-17 05:12  ·  6h 27m
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2026-10-16 20:47  →  2026-10-17 02:23  ·  5h 36m
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Codeshare partnerships

Marketing carriers selling tickets on this route under their own flight numbers

sells ACA 359
sells ASA 356
sells ASA 284
sells ASA 130
sells ACA 112

Looking for the return flight?

View KSEA → CYYZ