Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Columbus → San Francisco via Denver: arrives on time 63%
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09:00 CMH → 10:14 DENUA 728 · United · 3h 14m · 86% on time, 1.1% cancelled
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1h 07m layover in Denver (DEN) · 45 min minimum on one ticket
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11:21 DEN → 13:04 SFOUA 1561 · United · 2h 43m · 72% on time, 0.0% cancelled
Total trip 7h 04m, scheduled departure to arrival (San Francisco is 3 h behind Columbus). Times are local. Both flew on 56 of the last 56 days.
Makes the connection90%The first flight arrived more than 22 minutes late on 10% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time63%First flight not cancelled (1.1% are) × connection made (90%) × second flight not cancelled (0.0% are) and within 15 minutes (72%).
Total trip7h 04mCMH 09:00 to SFO 13:04, 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.