Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Phoenix via San Francisco: arrives on time 18%
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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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1h 14m layover in San Francisco (SFO) · 45 min minimum on one ticket
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21:21 SFO → 23:30 PHXUA 233 · United · 2h 09m · 58% on time, 0.0% cancelled
Total trip 4h 51m, scheduled departure to arrival. Times are local. Both flew on 21 of the last 56 days.
Makes the connection32%The first flight arrived more than 29 minutes late on 68% of the days it flew: too late for the 45-minute minimum connection on a 1h 14m layover.
Arrives on time18%First flight not cancelled (1.6% are) × connection made (32%) × second flight not cancelled (0.0% are) and within 15 minutes (58%).
Total trip4h 51mONT 18:39 to PHX 23:30, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.