Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Tucson via Denver: arrives on time 39%
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16:12 ORD → 18:13 DENUA 2769 · United · 3h 01m · 61% on time, 0.0% cancelled
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57m 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 6h 00m, scheduled departure to arrival (Tucson is 2 h behind Chicago). Times are local. Both flew on 36 of the last 56 days.
Makes the connection56%The first flight arrived more than 12 minutes late on 44% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time39%First flight not cancelled (0.0% are) × connection made (56%) × second flight not cancelled (0.0% are) and within 15 minutes (69%).
Total trip6h 00mORD 16:12 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.