Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Birmingham → Detroit via Atlanta: arrives on time 74%

  1. 16:00 BHM → 18:14 ATL
    DL 3163 · Delta · 1h 14m · 76% on time, 2.1% cancelled
  2. 3h 39m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 21:53 ATL → 23:57 DTW
    DL 651 · Delta · 2h 04m · 78% on time, 0.0% cancelled

Total trip 6h 57m, scheduled departure to arrival (Detroit is 1 h ahead of Birmingham). Times are local. Both flew on 43 of the last 56 days.

Makes the connection97%The first flight arrived more than 174 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 3h 39m layover.
Arrives on time74%First flight not cancelled (2.1% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (78%).
Total trip6h 57mBHM 16:00 to DTW 23:57, 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.