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

Chicago → Birmingham via Atlanta: arrives on time 67%

  1. 17:10 MDW → 20:22 ATL
    DL 1728 · Delta · 2h 10m · 74% on time, 2.1% cancelled
  2. 1h 22m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 21:44 ATL → 21:40 BHM
    DL 2257 · Delta · 56m · 83% on time, 2.3% cancelled

Total trip 4h 30m, scheduled departure to arrival. Times are local. Both flew on 28 of the last 56 days.

Makes the connection84%The first flight arrived more than 37 minutes late on 16% of the days it flew: too late for the 45-minute minimum connection on a 1h 22m layover.
Arrives on time67%First flight not cancelled (2.1% are) × connection made (84%) × second flight not cancelled (2.3% are) and within 15 minutes (83%).
Total trip4h 30mMDW 17:10 to BHM 21:40, 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.