Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → Ontario via Dallas-Fort Worth: arrives on time 20%
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18:47 LGA → 21:50 DFWAA 1571 · American · 4h 03m · 58% on time, 9.2% cancelled
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1h 05m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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22:55 DFW → 23:59 ONT +1 dayAA 1534 · American · 3h 07m · 39% on time, 2.7% cancelled
Total trip 8h 15m, scheduled departure to arrival (Ontario is 3 h behind New York). Times are local. Both flew on 53 of the last 56 days.
Makes the connection59%The first flight arrived more than 20 minutes late on 41% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time20%First flight not cancelled (9.2% are) × connection made (59%) × second flight not cancelled (2.7% are) and within 15 minutes (39%).
Total trip8h 15mLGA 18:47 to ONT 23:59, 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.