Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Ontario via Denver: arrives on time 48%
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16:12 ORD → 18:13 DENUA 2769 · United · 3h 01m · 61% on time, 0.0% cancelled
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1h 07m layover in Denver (DEN) · 45 min minimum on one ticket
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19:20 DEN → 20:42 ONTUA 2028 · United · 2h 22m · 75% on time, 0.0% cancelled
Total trip 6h 30m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 36 of the last 56 days.
Makes the connection64%The first flight arrived more than 22 minutes late on 36% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time48%First flight not cancelled (0.0% are) × connection made (64%) × second flight not cancelled (0.0% are) and within 15 minutes (75%).
Total trip6h 30mORD 16:12 to ONT 20:42, 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.