Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Columbus via Chicago: arrives on time 81%
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09:08 STL → 10:36 ORDAA 4104 · American, flown by Envoy · 1h 28m · 94% on time, 0.0% cancelled
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2h 12m layover in Chicago (ORD) · 90 min minimum on separate tickets
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12:48 ORD → 15:28 CMHUA 3554 · United, flown by Republic · 1h 40m · 86% on time, 2.0% cancelled
Total trip 5h 20m, scheduled departure to arrival (Columbus is 1 h ahead of St Louis). Times are local. Both flew on 51 of the last 56 days.
Makes the connection96%The first flight arrived more than 42 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 2h 12m layover.
Arrives on time81%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (2.0% are) and within 15 minutes (86%).
Total trip5h 20mSTL 09:08 to CMH 15:28, layover included
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.