Home / Routes / KSUS → KBFI4 scheduled

The route from Spirit of St Louis Airport (KSUS) in St Louis to Boeing Field King County International Airport (KBFI) in Seattle. SkyMeter tracks roughly 4 scheduled flights on this route across 5 carriers. The most active operator is DCM (DCM). Average block time is 3h 50m. Departures average 39 minutes off schedule, with 25% running more than 15 minutes late. The most common aircraft on this route is the GULFSTREAM AEROSPACE Gulfstream Aerospace Gulfstream G7-G500.

Scheduled
4
last 43 days
ADS-B observed
7
Airlines
5
Avg dep delay
39m
Late >15 min
25.0%
Cancel rate
0.00%

Recent observed flights

From ADS-B trace data

2026-06-28 17:48  →  2026-06-28 21:26  ·  3h 37m
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2026-06-18 14:35  →  2026-06-18 19:01  ·  4h 26m
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2026-05-30 17:20  →  2026-05-30 20:48  ·  3h 27m
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2026-05-14 16:21  →  2026-05-14 20:39  ·  4h 17m
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2026-05-11 21:10  →  2026-05-12 00:42  ·  3h 31m
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2026-04-27 18:02  →  2026-04-27 21:25  ·  3h 23m
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2026-04-27 15:46  →  2026-04-27 19:39  ·  3h 52m
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2026-03-10 18:45  →  2026-03-10 22:54  ·  4h 8m
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2025-12-02 21:04  →  2025-12-03 00:31  ·  3h 27m
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2025-11-19 13:22  →  2025-11-19 18:01  ·  4h 39m
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View KBFI → KSUS