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

Birmingham → Chicago via Atlanta: arrives on time 76%

  1. 05:15 BHM → 07:21 ATL
    DL 1979 · Delta · 1h 06m · 98% on time, 1.1% cancelled
  2. 1h 41m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:02 ATL → 10:13 ORD
    DL 1147 · Delta · 2h 11m · 80% on time, 2.8% cancelled

Total trip 4h 58m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection99%The first flight arrived more than 56 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 41m layover.
Arrives on time76%First flight not cancelled (1.1% are) × connection made (99%) × second flight not cancelled (2.8% are) and within 15 minutes (80%).
Total trip4h 58mBHM 05:15 to ORD 10:13, 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.