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

Birmingham → Nashville via Atlanta: arrives on time 44%

19:46 BHM → 22:00 ATL

DL 2470 · Delta · 1h 14m · 70% on time, 17.9% cancelled
1h 00m layover in Atlanta (ATL) · 45 min minimum on one ticket
23:00 ATL → 23:15 BNA

DL 3121 · Delta · 1h 15m · 80% on time, 4.5% cancelled

Total trip 3h 29m, scheduled departure to arrival. Times are local. Both flew on 28 of the last 56 days.

Makes the connection70%The first flight arrived more than 15 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.

Arrives on time44%First flight not cancelled (17.9% are) × connection made (70%) × second flight not cancelled (4.5% are) and within 15 minutes (80%).

Total trip3h 29mBHM 19:46 to BNA 23:15, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.