Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → St Louis via Atlanta: arrives on time 89%
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07:12 ORD → 10:27 ATLUA 425 · United · 2h 15m · 86% on time, 0.0% cancelled
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3h 42m layover in Atlanta (ATL) · 90 min minimum on separate tickets
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14:09 ATL → 14:48 STLDL 2700 · Delta · 1h 41m · 90% on time, 1.3% cancelled
Total trip 7h 38m, scheduled departure to arrival. Times are local. Both flew on 37 of the last 56 days.
Makes the connection100%The first flight arrived more than 132 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 42m layover.
Arrives on time89%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (1.3% are) and within 15 minutes (90%).
Total trip7h 38mORD 07:12 to STL 14:48, 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.