Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Atlanta → Birmingham via Chicago: arrives on time 79%

  1. 09:02 ATL → 10:13 ORD
    DL 1147 · Delta · 2h 11m · 80% on time, 2.8% cancelled
  2. 2h 48m layover in Chicago (ORD) · 90 min minimum on separate tickets
  3. 13:01 ORD → 15:01 BHM
    AA 3971 · American, flown by Envoy · 2h 00m · 86% on time, 2.3% cancelled

Total trip 6h 59m, scheduled departure to arrival (Birmingham is 1 h behind Atlanta). Times are local. Both flew on 30 of the last 56 days.

Makes the connection97%The first flight arrived more than 78 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 2h 48m layover.
Arrives on time79%First flight not cancelled (2.8% are) × connection made (97%) × second flight not cancelled (2.3% are) and within 15 minutes (86%).
Total trip6h 59mATL 09:02 to BHM 15:01, 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.