Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Miami via San Francisco: arrives on time 70%
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06:00 ONT → 07:25 SFOUA 2363 · United · 1h 25m · 91% on time, 1.0% cancelled
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1h 15m layover in San Francisco (SFO) · 45 min minimum on one ticket
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08:40 SFO → 17:29 MIAUA 2029 · United · 5h 49m · 73% on time, 0.0% cancelled
Total trip 8h 29m, scheduled departure to arrival (Miami is 3 h ahead of Ontario). Times are local. Both flew on 56 of the last 56 days.
Makes the connection96%The first flight arrived more than 30 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 15m layover.
Arrives on time70%First flight not cancelled (1.0% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (73%).
Total trip8h 29mONT 06:00 to MIA 17:29, 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.