Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Tucson → Houston via Denver: arrives on time 72%
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13:30 TUS → 16:39 DENUA 2671 · United · 2h 09m · 81% on time, 0.0% cancelled
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2h 56m layover in Denver (DEN) · 45 min minimum on one ticket
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19:35 DEN → 23:06 IAHUA 475 · United · 2h 31m · 75% on time, 0.0% cancelled
Total trip 7h 36m, scheduled departure to arrival (Houston is 2 h ahead of Tucson). Times are local. Both flew on 36 of the last 56 days.
Makes the connection96%The first flight arrived more than 131 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 56m layover.
Arrives on time72%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (75%).
Total trip7h 36mTUS 13:30 to IAH 23:06, 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.