Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Houston via Chicago: arrives on time 71%
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13:13 STL → 14:43 ORDUA 1382 · United · 1h 30m · 71% on time, 2.8% cancelled
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3h 02m layover in Chicago (ORD) · 45 min minimum on one ticket
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17:45 ORD → 20:50 IAHUA 1954 · United · 3h 05m · 77% on time, 1.4% cancelled
Total trip 7h 37m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection96%The first flight arrived more than 137 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 3h 02m layover.
Arrives on time71%First flight not cancelled (2.8% are) × connection made (96%) × second flight not cancelled (1.4% are) and within 15 minutes (77%).
Total trip7h 37mSTL 13:13 to IAH 20:50, 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.