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

Atlanta → Chicago via Detroit: arrives on time 38%

  1. 17:10 ATL → 19:11 DTW
    DL 2067 · Delta · 2h 01m · 76% on time, 0.3% cancelled
  2. 49m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 20:00 DTW → 20:31 ORD
    DL 1665 · Delta · 1h 31m · 66% on time, 3.3% cancelled

Total trip 4h 21m, scheduled departure to arrival (Chicago is 1 h behind Atlanta). Times are local. Both flew on 56 of the last 56 days.

Makes the connection60%The first flight arrived more than 4 minutes late on 40% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time38%First flight not cancelled (0.3% are) × connection made (60%) × second flight not cancelled (3.3% are) and within 15 minutes (66%).
Total trip4h 21mATL 17:10 to ORD 20:31, 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.