Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Houston via Chicago: arrives on time 62%
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17:59 STL → 19:30 ORDUA 1639 · United · 1h 31m · 66% on time, 5.6% cancelled
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2h 10m layover in Chicago (ORD) · 45 min minimum on one ticket
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21:40 ORD → 00:34 IAH +1 dayUA 2665 · United · 2h 54m · 76% on time, 2.3% cancelled
Total trip 6h 35m, scheduled departure to arrival. Times are local. Both flew on 46 of the last 56 days.
Makes the connection88%The first flight arrived more than 85 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 2h 10m layover.
Arrives on time62%First flight not cancelled (5.6% are) × connection made (88%) × second flight not cancelled (2.3% are) and within 15 minutes (76%).
Total trip6h 35mSTL 17:59 to IAH 00:34, 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.