Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Ontario via Denver: arrives on time 85%
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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 33m layover in Denver (DEN) · 45 min minimum on one ticket
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11:25 DEN → 12:47 ONTUA 430 · United · 2h 22m · 88% on time, 0.0% cancelled
Total trip 7h 27m, scheduled departure to arrival (Ontario is 2 h behind Houston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection97%The first flight arrived more than 108 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 2h 33m layover.
Arrives on time85%First flight not cancelled (1.4% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip7h 27mIAH 07:20 to ONT 12:47, 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.