Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → Ontario via Denver: arrives on time 67%
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13:55 LGA → 16:19 DENDL 716 · Delta · 4h 24m · 71% on time, 3.9% cancelled
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3h 01m layover in Denver (DEN) · 90 min minimum on separate tickets
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19:20 DEN → 20:42 ONTUA 2028 · United · 2h 22m · 75% on time, 0.0% cancelled
Total trip 9h 47m, scheduled departure to arrival (Ontario is 3 h behind New York). Times are local. Both flew on 50 of the last 56 days.
Makes the connection93%The first flight arrived more than 91 minutes late on 7% of the days it flew: too late for the 90-minute minimum connection on a 3h 01m layover.
Arrives on time67%First flight not cancelled (3.9% are) × connection made (93%) × second flight not cancelled (0.0% are) and within 15 minutes (75%).
Total trip9h 47mLGA 13:55 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.