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

Dallas → Chicago via Atlanta: arrives on time 36%

  1. 15:59 DAL → 19:14 ATL
    DL 512 · Delta · 2h 15m · 72% on time, 1.4% cancelled
  2. 48m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 20:02 ATL → 21:12 ORD
    DL 1139 · Delta · 2h 10m · 60% on time, 0.9% cancelled

Total trip 5h 13m, scheduled departure to arrival. Times are local. Both flew on 2 of the last 56 days, too few to list among the best connections.

Makes the connection62%The first flight arrived more than 3 minutes late on 38% of the days it flew: too late for the 45-minute minimum connection on a 48m layover.
Arrives on time36%First flight not cancelled (1.4% are) × connection made (62%) × second flight not cancelled (0.9% are) and within 15 minutes (60%).
Total trip5h 13mDAL 15:59 to ORD 21:12, 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.