Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → Ontario via Denver: arrives on time 82%
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06:55 LGA → 09:05 DENWN 2454 · Southwest · 4h 10m · 80% on time, 1.8% cancelled
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2h 20m layover in Denver (DEN) · 90 min minimum on separate tickets
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11:25 DEN → 12:47 ONTUA 430 · United · 2h 22m · 88% on time, 0.0% cancelled
Total trip 8h 52m, scheduled departure to arrival (Ontario is 3 h behind New York). Times are local. Both flew on 55 of the last 56 days.
Makes the connection95%The first flight arrived more than 50 minutes late on 5% of the days it flew: too late for the 90-minute minimum connection on a 2h 20m layover.
Arrives on time82%First flight not cancelled (1.8% are) × connection made (95%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip8h 52mLGA 06:55 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.