Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Denver via Dulles: arrives on time 88%
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07:20 IAH → 11:28 IADUA 1549 · United · 3h 08m · 92% on time, 0.6% cancelled
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1h 20m layover in Dulles (IAD) · 45 min minimum on one ticket
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12:48 IAD → 14:42 DENUA 1587 · United · 3h 54m · 92% on time, 0.3% cancelled
Total trip 8h 22m, scheduled departure to arrival (Denver is 1 h behind Houston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection97%The first flight arrived more than 35 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time88%First flight not cancelled (0.6% are) × connection made (97%) × second flight not cancelled (0.3% are) and within 15 minutes (92%).
Total trip8h 22mIAH 07:20 to DEN 14:42, 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.