Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Chicago via Denver: arrives on time 81%
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05:00 ONT → 08:20 DENUA 2446 · United · 2h 20m · 94% on time, 0.4% cancelled
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2h 55m layover in Denver (DEN) · 45 min minimum on one ticket
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11:15 DEN → 14:55 ORDUA 2865 · United · 2h 40m · 82% on time, 0.0% cancelled
Total trip 7h 55m, scheduled departure to arrival (Chicago is 2 h ahead of Ontario). Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 130 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 55m layover.
Arrives on time81%First flight not cancelled (0.4% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (82%).
Total trip7h 55mONT 05:00 to ORD 14:55, 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.