Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Tucson → Denver via Houston: arrives on time 84%
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06:37 TUS → 11:13 IAHUA 4042 · United, flown by Mesa · 2h 36m · 95% on time, 0.0% cancelled
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1h 20m 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 6h 40m, scheduled departure to arrival (Denver is 1 h ahead of Tucson). Times are local. Both flew on 37 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 time84%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (86%).
Total trip6h 40mTUS 06:37 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.