Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Dulles via Houston: arrives on time 79%
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08:35 STL → 10:50 IAHUA 4579 · United, flown by GoJet · 2h 15m · 93% on time, 0.0% cancelled
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1h 23m layover in Houston (IAH) · 45 min minimum on one ticket
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12:13 IAH → 16:30 IADUA 2366 · United · 3h 17m · 82% on time, 0.3% cancelled
Total trip 6h 55m, scheduled departure to arrival (Dulles is 1 h ahead of St Louis). Times are local. Both flew on 30 of the last 56 days.
Makes the connection97%The first flight arrived more than 38 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 23m layover.
Arrives on time79%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.3% are) and within 15 minutes (82%).
Total trip6h 55mSTL 08:35 to IAD 16:30, 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.