Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → Ontario via Atlanta: arrives on time 45%
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13:00 LGA → 15:26 ATLDL 994 · Delta · 2h 27m · 82% on time, 2.1% cancelled
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1h 33m layover in Atlanta (ATL) · 45 min minimum on one ticket
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16:59 ATL → 18:30 ONTDL 2891 · Delta · 4h 31m · 50% on time, 0.0% cancelled
Total trip 8h 30m, scheduled departure to arrival (Ontario is 3 h behind New York). Times are local. Both flew on 54 of the last 56 days.
Makes the connection91%The first flight arrived more than 48 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 1h 33m layover.
Arrives on time45%First flight not cancelled (2.1% are) × connection made (91%) × second flight not cancelled (0.0% are) and within 15 minutes (50%).
Total trip8h 30mLGA 13:00 to ONT 18:30, 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.