Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Denver via Houston: arrives on time 78%
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05:00 SEA → 11:21 IAHUA 2748 · United · 4h 21m · 89% on time, 0.0% cancelled
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1h 12m layover in Houston (IAH) · 45 min minimum on one ticket
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12:33 IAH → 14:17 DENUA 2168 · United · 2h 44m · 86% on time, 0.0% cancelled
Total trip 8h 17m, scheduled departure to arrival (Denver is 1 h ahead of Seattle). Times are local. Both flew on 50 of the last 56 days.
Makes the connection90%The first flight arrived more than 27 minutes late on 10% of the days it flew: too late for the 45-minute minimum connection on a 1h 12m layover.
Arrives on time78%First flight not cancelled (0.0% are) × connection made (90%) × second flight not cancelled (0.0% are) and within 15 minutes (86%).
Total trip8h 17mSEA 05:00 to DEN 14:17, 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.