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

Birmingham → Houston via Atlanta: arrives on time 79%

  1. 09:28 BHM → 11:29 ATL
    DL 3100 · Delta · 1h 01m · 94% on time, 2.1% cancelled
  2. 1h 01m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 12:30 ATL → 13:38 IAH
    DL 1572 · Delta · 2h 08m · 86% on time, 0.5% cancelled

Total trip 4h 10m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection94%The first flight arrived more than 16 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time79%First flight not cancelled (2.1% are) × connection made (94%) × second flight not cancelled (0.5% are) and within 15 minutes (86%).
Total trip4h 10mBHM 09:28 to IAH 13:38, 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.