Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Newark via San Francisco: arrives on time 75%
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18:39 ONT → 20:07 SFOUA 5624 · United, flown by SkyWest · 1h 28m · 16% on time, 1.6% cancelled
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2h 28m layover in San Francisco (SFO) · 45 min minimum on one ticket
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22:35 SFO → 07:00 EWR +1 dayUA 1141 · United · 5h 25m · 83% on time, 3.2% cancelled
Total trip 9h 21m, scheduled departure to arrival (Newark is 3 h ahead of Ontario). Times are local. Both flew on 46 of the last 56 days.
Makes the connection95%The first flight arrived more than 103 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 2h 28m layover.
Arrives on time75%First flight not cancelled (1.6% are) × connection made (95%) × second flight not cancelled (3.2% are) and within 15 minutes (83%).
Total trip9h 21mONT 18:39 to EWR 07:00, 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.