Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Columbus via Atlanta: arrives on time 78%
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07:08 STL → 09:45 ATLDL 1536 · Delta · 1h 37m · 97% on time, 1.5% cancelled
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2h 20m layover in Atlanta (ATL) · 45 min minimum on one ticket
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12:05 ATL → 13:38 CMHDL 1750 · Delta · 1h 35m · 81% on time, 1.2% cancelled
Total trip 5h 32m, scheduled departure to arrival (Columbus is 1 h ahead of St Louis). Times are local. Both flew on 56 of the last 56 days.
Makes the connection98%The first flight arrived more than 95 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 20m layover.
Arrives on time78%First flight not cancelled (1.5% are) × connection made (98%) × second flight not cancelled (1.2% are) and within 15 minutes (81%).
Total trip5h 32mSTL 07:08 to CMH 13:38, 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.