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

Detroit → Birmingham via Atlanta: arrives on time 86%

  1. 09:25 DTW → 11:25 ATL
    DL 2777 · Delta · 2h 00m · 86% on time, 0.0% cancelled
  2. 2h 05m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 13:30 ATL → 13:24 BHM
    DL 3012 · Delta · 54m · 88% on time, 0.6% cancelled

Total trip 4h 59m, scheduled departure to arrival (Birmingham is 1 h behind Detroit). Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 80 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 05m layover.
Arrives on time86%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.6% are) and within 15 minutes (88%).
Total trip4h 59mDTW 09:25 to BHM 13:24, 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.