Home / Routes / KSTS → KSEA735 scheduled

The route from Charles M. Schulz Sonoma County Airport (KSTS) in Santa Rosa to Seattle Tacoma International Airport (KSEA) in Seattle. SkyMeter tracks roughly 735 scheduled flights on this route across 9 carriers. The most active operator is ASA (ASA). Average block time is 2h 0m. Departures average 25 minutes off schedule, with 44% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-800.

Scheduled
735
last 430 days
ADS-B observed
144
Airlines
9
Avg dep delay
25m
Late >15 min
43.5%
Cancel rate
1.90%

Recent observed flights

From ADS-B trace data

2026-07-05 21:02  →  2026-07-05 22:35  ·  1h 33m
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2026-07-04 20:16  →  2026-07-04 21:45  ·  1h 28m
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2026-07-04 02:25  →  2026-07-04 04:12  ·  1h 46m
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2026-07-03 19:59  →  2026-07-03 21:36  ·  1h 36m
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2026-07-03 02:39  →  2026-07-03 04:17  ·  1h 37m
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2026-07-02 20:05  →  2026-07-02 21:49  ·  1h 44m
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2026-07-02 02:51  →  2026-07-02 04:34  ·  1h 42m
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2026-07-01 20:03  →  2026-07-01 21:38  ·  1h 35m
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2026-06-30 20:12  →  2026-06-30 21:58  ·  1h 46m
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2026-06-30 02:29  →  2026-06-30 04:12  ·  1h 42m
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Codeshare partnerships

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

sells ASA 686
sells ASA 377
sells ASA 346
sells ASA 2

Looking for the return flight?

View KSEA → KSTS