Home / Routes / KSEA → KSFO8,224 scheduled

The route from Seattle Tacoma International Airport (KSEA) in Seattle to San Francisco International Airport (KSFO) in San Francisco. SkyMeter tracks roughly 8,224 scheduled flights on this route across 20 carriers. The most active operator is ASA (ASA). Average block time is 2h 4m. Departures average 39 minutes off schedule, with 65% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-900.

Scheduled
8,224
last 487 days
ADS-B observed
1,550
Airlines
20
Avg dep delay
39m
Late >15 min
65.4%
Cancel rate
1.05%

Recent observed flights

From ADS-B trace data

2026-08-31 21:18  →  2026-08-31 23:46  ·  2h 28m
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2026-08-31 20:32  →  2026-08-31 22:44  ·  2h 11m
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2026-08-31 17:52  →  2026-08-31 20:17  ·  2h 25m
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2026-08-31 17:28  →  2026-08-31 20:04  ·  2h 36m
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2026-08-31 16:57  →  2026-08-31 19:20  ·  2h 23m
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2026-08-31 15:42  →  2026-08-31 18:09  ·  2h 26m
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2026-08-31 14:46  →  2026-08-31 16:36  ·  1h 50m
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2026-08-31 04:53  →  2026-08-31 06:53  ·  1h 59m
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2026-08-31 04:41  →  2026-08-31 06:21  ·  1h 40m
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2026-08-31 02:54  →  2026-08-31 04:33  ·  1h 38m
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Codeshare partnerships

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

sells ASA 2749
sells ASA 2431
sells ASA 2224
sells UAL 2216
sells UAL 2208
sells ASA 1610
sells DAL 1508
sells ASA 1077
sells UAL 1056
sells ASA 934
sells ASA 858
sells DAL 819
sells UAL 718
sells ASA 717
sells ASA 667
sells UAL 664
sells DAL 660
sells DAL 620
sells UAL 574
sells ASA 518

Looking for the return flight?

View KSFO → KSEA