Home / Routes / KSEA → KCPS2 scheduled

The route from Seattle Tacoma International Airport (KSEA) in Seattle to St Louis Downtown Airport (KCPS) in Cahokia/St Louis. SkyMeter tracks roughly 2 scheduled flights on this route across 1 carrier. The most active operator is SCX (SCX). Average block time is 3h 34m. Departures average 18 minutes off schedule, with 50% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-700.

Scheduled
2
last 210 days
ADS-B observed
1
Airlines
1
Avg dep delay
18m
Late >15 min
50.0%
Cancel rate
0.00%

Recent observed flights

From ADS-B trace data

2026-09-17 19:35  →  2026-09-17 23:12  ·  3h 36m
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2026-04-19 17:51  →  2026-04-19 21:26  ·  3h 34m
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2025-09-20 18:36  →  2025-09-20 22:19  ·  3h 42m
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2025-07-01 18:10  →  2025-07-01 22:13  ·  4h 3m
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Typical aircraft

Observed via ADS-B on this route

BOEING Boeing 737-700
B737
100%
of flights

Looking for the return flight?

View KCPS → KSEA