Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Tucson via Denver: arrives on time 83%
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07:20 IAH → 08:52 DENUA 1575 · United · 2h 32m · 77% on time, 1.4% cancelled
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2h 38m layover in Denver (DEN) · 45 min minimum on one ticket
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11:30 DEN → 12:32 TUSUA 1188 · United · 2h 02m · 86% on time, 0.0% cancelled
Total trip 7h 12m, scheduled departure to arrival (Tucson is 2 h behind Houston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection98%The first flight arrived more than 113 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 38m layover.
Arrives on time83%First flight not cancelled (1.4% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (86%).
Total trip7h 12mIAH 07:20 to TUS 12:32, 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.