Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Baltimore → Ontario via San Francisco: arrives on time 76%
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14:50 BWI → 17:30 SFOWN 1101 · Southwest · 5h 40m · 22% on time, 0.0% cancelled
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3h 30m layover in San Francisco (SFO) · 90 min minimum on separate tickets
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21:00 SFO → 22:37 ONTUA 552 · United · 1h 37m · 83% on time, 0.5% cancelled
Total trip 10h 47m, scheduled departure to arrival (Ontario is 3 h behind Baltimore). Times are local. Both flew on 47 of the last 56 days.
Makes the connection92%The first flight arrived more than 120 minutes late on 8% of the days it flew: too late for the 90-minute minimum connection on a 3h 30m layover.
Arrives on time76%First flight not cancelled (0.0% are) × connection made (92%) × second flight not cancelled (0.5% are) and within 15 minutes (83%).
Total trip10h 47mBWI 14:50 to ONT 22:37, 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.