Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Columbus → San Francisco via Chicago: arrives on time 66%
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17:55 CMH → 18:34 ORDUA 545 · United · 1h 39m · 49% on time, 5.4% cancelled
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3h 01m layover in Chicago (ORD) · 45 min minimum on one ticket
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21:35 ORD → 00:32 SFO +1 dayUA 2106 · United · 4h 57m · 78% on time, 2.5% cancelled
Total trip 9h 37m, scheduled departure to arrival (San Francisco is 3 h behind Columbus). Times are local. Both flew on 37 of the last 56 days.
Makes the connection91%The first flight arrived more than 136 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 3h 01m layover.
Arrives on time66%First flight not cancelled (5.4% are) × connection made (91%) × second flight not cancelled (2.5% are) and within 15 minutes (78%).
Total trip9h 37mCMH 17:55 to SFO 00:32, 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.