Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Charlotte → San Francisco via Boston: arrives on time 77%
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07:06 CLT → 09:19 BOSAA 1548 · American · 2h 13m · 92% on time, 0.0% cancelled
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2h 16m layover in Boston (BOS) · 90 min minimum on separate tickets
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11:35 BOS → 15:02 SFOUA 1074 · United · 6h 27m · 80% on time, 0.4% cancelled
Total trip 10h 56m, scheduled departure to arrival (San Francisco is 3 h behind Charlotte). Times are local. Both flew on 46 of the last 56 days.
Makes the connection96%The first flight arrived more than 46 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 2h 16m layover.
Arrives on time77%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.4% are) and within 15 minutes (80%).
Total trip10h 56mCLT 07:06 to SFO 15:02, 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.