Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Dulles via Denver: arrives on time 80%
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09:06 STL → 10:30 DENUA 2459 · United · 2h 24m · 92% on time, 0.0% cancelled
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1h 56m layover in Denver (DEN) · 45 min minimum on one ticket
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12:26 DEN → 17:58 IADUA 2853 · United · 3h 32m · 82% on time, 0.0% cancelled
Total trip 7h 52m, scheduled departure to arrival (Dulles is 1 h ahead of St Louis). Times are local. Both flew on 56 of the last 56 days.
Makes the connection97%The first flight arrived more than 71 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 56m layover.
Arrives on time80%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (82%).
Total trip7h 52mSTL 09:06 to IAD 17:58, 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.