Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Miami via San Francisco: arrives on time 82%
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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 47m layover in San Francisco (SFO) · 45 min minimum on one ticket
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22:54 SFO → 07:39 MIA +1 dayUA 1769 · United · 5h 45m · 86% on time, 0.0% cancelled
Total trip 10h 00m, scheduled departure to arrival (Miami is 3 h ahead of Ontario). Times are local. Both flew on 37 of the last 56 days.
Makes the connection96%The first flight arrived more than 122 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 47m layover.
Arrives on time82%First flight not cancelled (1.6% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (86%).
Total trip10h 00mONT 18:39 to MIA 07:39, 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.