Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Columbus → Houston via Chicago: arrives on time 81%
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09:00 CMH → 09:36 ORDUA 466 · United · 1h 36m · 81% on time, 6.1% cancelled
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3h 04m layover in Chicago (ORD) · 45 min minimum on one ticket
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12:40 ORD → 15:40 IAHUA 1448 · United · 3h 00m · 89% on time, 0.8% cancelled
Total trip 7h 40m, scheduled departure to arrival (Houston is 1 h behind Columbus). Times are local. Both flew on 37 of the last 56 days.
Makes the connection98%The first flight arrived more than 139 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 3h 04m layover.
Arrives on time81%First flight not cancelled (6.1% are) × connection made (98%) × second flight not cancelled (0.8% are) and within 15 minutes (89%).
Total trip7h 40mCMH 09:00 to IAH 15:40, 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.