Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Birmingham via Atlanta: arrives on time 76%
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10:29 ORD → 13:44 ATLUA 2684 · United · 2h 15m · 86% on time, 0.0% cancelled
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2h 41m layover in Atlanta (ATL) · 90 min minimum on separate tickets
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16:25 ATL → 16:19 BHMDL 2484 · Delta · 56m · 81% on time, 1.1% cancelled
Total trip 5h 52m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.
Makes the connection94%The first flight arrived more than 71 minutes late on 6% of the days it flew: too late for the 90-minute minimum connection on a 2h 41m layover.
Arrives on time76%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (1.1% are) and within 15 minutes (81%).
Total trip5h 52mORD 10:29 to BHM 16:19, 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.