Home / Routes / KSFO → KSEA8,142 scheduled

The route from San Francisco International Airport (KSFO) in San Francisco to Seattle Tacoma International Airport (KSEA) in Seattle. SkyMeter tracks roughly 8,142 scheduled flights on this route across 20 carriers. The most active operator is ASA (ASA). Average block time is 2h 5m. Departures average 32 minutes off schedule, with 57% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-900.

Scheduled
8,142
last 480 days
ADS-B observed
1,461
Airlines
20
Avg dep delay
32m
Late >15 min
57.3%
Cancel rate
0.95%

Recent observed flights

From ADS-B trace data

2026-08-25 21:32  →  2026-08-25 23:43  ·  2h 10m
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2026-08-25 21:03  →  2026-08-25 23:26  ·  2h 23m
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2026-08-25 20:47  →  2026-08-25 22:41  ·  1h 54m
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2026-08-25 19:12  →  2026-08-25 21:10  ·  1h 58m
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2026-08-25 18:16  →  2026-08-25 20:17  ·  2h 1m
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2026-08-25 18:04  →  2026-08-25 20:04  ·  2h 0m
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2026-08-25 16:13  →  2026-08-25 18:13  ·  2h 0m
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2026-08-25 15:56  →  2026-08-25 17:52  ·  1h 55m
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2026-08-25 13:53  →  2026-08-25 15:38  ·  1h 45m
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2026-08-25 12:52  →  2026-08-25 14:51  ·  1h 59m
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Codeshare partnerships

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

sells ASA 2751
sells ASA 2422
sells ASA 2388
sells UAL 2216
sells UAL 2110
sells ASA 1707
sells UAL 1424
sells DAL 1378
sells ASA 1076
sells UAL 981
sells ASA 850
sells ASA 781
sells ASA 728
sells ASA 704
sells DAL 685
sells ASA 675
sells DAL 571
sells DAL 568
sells ASA 508
sells UAL 488

Looking for the return flight?

View KSEA → KSFO