Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Newark → Ontario via Atlanta: arrives on time 46%
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12:00 EWR → 14:20 ATLDL 2397 · Delta · 2h 20m · 81% on time, 5.8% cancelled
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2h 39m 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 9h 30m, scheduled departure to arrival (Ontario is 3 h behind Newark). Times are local. Both flew on 54 of the last 56 days.
Makes the connection97%The first flight arrived more than 114 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 2h 39m layover.
Arrives on time46%First flight not cancelled (5.8% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (50%).
Total trip9h 30mEWR 12:00 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.