Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Baltimore via San Francisco: arrives on time 88%
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06:00 ONT → 07:25 SFOUA 2363 · United · 1h 25m · 91% on time, 1.0% cancelled
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2h 08m layover in San Francisco (SFO) · 45 min minimum on one ticket
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09:33 SFO → 17:57 BWIUA 2664 · United · 5h 24m · 91% on time, 0.3% cancelled
Total trip 8h 57m, scheduled departure to arrival (Baltimore is 3 h ahead of Ontario). Times are local. Both flew on 56 of the last 56 days.
Makes the connection98%The first flight arrived more than 83 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 08m layover.
Arrives on time88%First flight not cancelled (1.0% are) × connection made (98%) × second flight not cancelled (0.3% are) and within 15 minutes (91%).
Total trip8h 57mONT 06:00 to BWI 17:57, 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.