Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Phoenix → Ontario via San Francisco: arrives on time 33%
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13:16 PHX → 15:19 SFOUA 1427 · United · 2h 03m · 54% on time, 0.0% cancelled
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58m layover in San Francisco (SFO) · 45 min minimum on one ticket
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16:17 SFO → 17:54 ONTUA 5613 · United, flown by SkyWest · 1h 37m · 67% on time, 3.8% cancelled
Total trip 4h 38m, scheduled departure to arrival. Times are local. Both flew on 35 of the last 56 days.
Makes the connection51%The first flight arrived more than 13 minutes late on 49% of the days it flew: too late for the 45-minute minimum connection on a 58m layover.
Arrives on time33%First flight not cancelled (0.0% are) × connection made (51%) × second flight not cancelled (3.8% are) and within 15 minutes (67%).
Total trip4h 38mPHX 13:16 to ONT 17:54, 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.