Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → San Francisco via Atlanta: arrives on time 67%
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06:00 STL → 08:38 ATLDL 1524 · Delta · 1h 38m · 96% on time, 1.6% cancelled
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1h 07m layover in Atlanta (ATL) · 45 min minimum on one ticket
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09:45 ATL → 11:45 SFODL 672 · Delta · 5h 00m · 70% on time, 0.0% cancelled
Total trip 7h 45m, scheduled departure to arrival (San Francisco is 2 h behind St Louis). Times are local. Both flew on 52 of the last 56 days.
Makes the connection96%The first flight arrived more than 22 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time67%First flight not cancelled (1.6% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (70%).
Total trip7h 45mSTL 06:00 to SFO 11:45, 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.