Home / Routes / KSEA → KSAT675 scheduled

The route from Seattle Tacoma International Airport (KSEA) in Seattle to San Antonio International Airport (KSAT) in San Antonio. SkyMeter tracks roughly 675 scheduled flights on this route across 11 carriers. The most active operator is ASA (ASA). Average block time is 3h 57m. Departures average 37 minutes off schedule, with 78% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-900.

Scheduled
675
last 445 days
ADS-B observed
170
Airlines
11
Avg dep delay
37m
Late >15 min
78.2%
Cancel rate
0.59%

Recent observed flights

From ADS-B trace data

2026-07-19 16:41  →  2026-07-19 20:31  ·  3h 49m
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2026-07-19 08:51  →  2026-07-19 12:33  ·  3h 42m
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2026-07-18 16:39  →  2026-07-18 20:40  ·  4h 1m
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2026-07-18 16:20  →  2026-07-18 20:47  ·  4h 27m
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2026-07-18 06:20  →  2026-07-18 10:11  ·  3h 50m
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2026-07-17 16:47  →  2026-07-17 20:46  ·  3h 59m
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2026-07-17 06:19  →  2026-07-17 10:27  ·  4h 7m
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2026-07-16 16:39  →  2026-07-16 21:52  ·  5h 12m
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2026-07-16 06:09  →  2026-07-16 10:33  ·  4h 23m
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2026-07-15 16:59  →  2026-07-15 21:08  ·  4h 8m
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Codeshare partnerships

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

sells ASA 560
sells ASA 509
sells ASA 205
sells ASA 86
sells ASA 10

Looking for the return flight?

View KSAT → KSEA