Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Detroit → Birmingham via Atlanta: arrives on time 82%
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06:10 DTW → 08:31 ATLF9 1263 · Frontier · 2h 21m · 78% on time, 1.1% cancelled
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2h 44m layover in Atlanta (ATL) · 90 min minimum on separate tickets
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11:15 ATL → 11:11 BHMDL 1017 · Delta · 56m · 91% on time, 1.9% cancelled
Total trip 6h 01m, scheduled departure to arrival (Birmingham is 1 h behind Detroit). Times are local. Both flew on 54 of the last 56 days.
Makes the connection94%The first flight arrived more than 74 minutes late on 6% of the days it flew: too late for the 90-minute minimum connection on a 2h 44m layover.
Arrives on time82%First flight not cancelled (1.1% are) × connection made (94%) × second flight not cancelled (1.9% are) and within 15 minutes (91%).
Total trip6h 01mDTW 06:10 to BHM 11:11, 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.