Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → Ontario via Denver: arrives on time 58%
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15:20 LGA → 17:56 DENUA 1729 · United · 4h 36m · 63% on time, 2.8% cancelled
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1h 24m 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 8h 22m, 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 connection80%The first flight arrived more than 39 minutes late on 20% of the days it flew: too late for the 45-minute minimum connection on a 1h 24m layover.
Arrives on time58%First flight not cancelled (2.8% are) × connection made (80%) × second flight not cancelled (0.0% are) and within 15 minutes (75%).
Total trip8h 22mLGA 15:20 to ONT 20:42, 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.