Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → San Francisco via Los Angeles: arrives on time 56%
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06:21 BOS → 09:35 LAXUA 360 · United · 6h 14m · 92% on time, 0.0% cancelled
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1h 20m layover in Los Angeles (LAX) · 45 min minimum on one ticket
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10:55 LAX → 12:30 SFOUA 1791 · United · 1h 35m · 58% on time, 0.0% cancelled
Total trip 9h 09m, scheduled departure to arrival (San Francisco is 3 h behind Boston). Times are local. Both flew on 48 of the last 56 days.
Makes the connection97%The first flight arrived more than 35 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time56%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (58%).
Total trip9h 09mBOS 06:21 to SFO 12:30, 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.