Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Baltimore → San Francisco via Houston: arrives on time 69%
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06:00 BWI → 08:16 IAHUA 1898 · United · 3h 16m · 93% on time, 2.4% cancelled
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1h 19m layover in Houston (IAH) · 45 min minimum on one ticket
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09:35 IAH → 11:35 SFOUA 2358 · United · 4h 00m · 74% on time, 1.4% cancelled
Total trip 8h 35m, scheduled departure to arrival (San Francisco is 3 h behind Baltimore). Times are local. Both flew on 39 of the last 56 days.
Makes the connection97%The first flight arrived more than 34 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 19m layover.
Arrives on time69%First flight not cancelled (2.4% are) × connection made (97%) × second flight not cancelled (1.4% are) and within 15 minutes (74%).
Total trip8h 35mBWI 06:00 to SFO 11:35, 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.