Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Tucson via Denver: arrives on time 51%
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16:21 IAH → 18:23 DENUA 484 · United · 3h 02m · 80% on time, 0.0% cancelled
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47m layover in Denver (DEN) · 45 min minimum on one ticket
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19:10 DEN → 20:12 TUSUA 1762 · United · 2h 02m · 69% on time, 0.0% cancelled
Total trip 5h 51m, scheduled departure to arrival (Tucson is 2 h behind Houston). Times are local. Both flew on 36 of the last 56 days.
Makes the connection74%The first flight arrived more than 2 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 47m layover.
Arrives on time51%First flight not cancelled (0.0% are) × connection made (74%) × second flight not cancelled (0.0% are) and within 15 minutes (69%).
Total trip5h 51mIAH 16:21 to TUS 20:12, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.