Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Columbus → San Francisco via Houston: arrives on time 75%
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11:43 CMH → 13:40 IAHUA 4065 · United, flown by Mesa · 2h 57m · 79% on time, 0.7% cancelled
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1h 50m layover in Houston (IAH) · 45 min minimum on one ticket
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15:30 IAH → 17:35 SFOUA 589 · United · 4h 05m · 80% on time, 0.0% cancelled
Total trip 8h 52m, scheduled departure to arrival (San Francisco is 3 h behind Columbus). Times are local. Both flew on 51 of the last 56 days.
Makes the connection94%The first flight arrived more than 65 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 50m layover.
Arrives on time75%First flight not cancelled (0.7% are) × connection made (94%) × second flight not cancelled (0.0% are) and within 15 minutes (80%).
Total trip8h 52mCMH 11:43 to SFO 17:35, 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.