Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Atlanta via Columbus: arrives on time 91%
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21:23 SFO → 05:15 CMHUA 1939 · United · 4h 52m · 90% on time, 0.0% cancelled
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2h 53m layover in Columbus (CMH) · 90 min minimum on separate tickets
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08:08 CMH → 09:45 ATL +1 dayDL 3165 · Delta · 1h 37m · 91% on time, 0.5% cancelled
Total trip 9h 22m, scheduled departure to arrival (Atlanta is 3 h ahead of San Francisco). Times are local. Both flew on 21 of the last 56 days.
Makes the connection100%The first flight arrived more than 83 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 2h 53m layover.
Arrives on time91%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.5% are) and within 15 minutes (91%).
Total trip9h 22mSFO 21:23 to ATL 09:45, 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.