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

Chicago → Chattanooga via Detroit: arrives on time 70%

  1. 07:01 ORD → 09:30 DTW
    DL 2039 · Delta · 1h 29m · 87% on time, 3.2% cancelled
  2. 2h 55m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 12:25 DTW → 14:14 CHA
    DL 5117 · Delta, flown by Endeavor · 1h 49m · 76% on time, 0.3% cancelled

Total trip 6h 13m, scheduled departure to arrival (Chattanooga is 1 h ahead of Chicago). Times are local. Both flew on 47 of the last 56 days.

Makes the connection96%The first flight arrived more than 130 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 55m layover.
Arrives on time70%First flight not cancelled (3.2% are) × connection made (96%) × second flight not cancelled (0.3% are) and within 15 minutes (76%).
Total trip6h 13mORD 07:01 to CHA 14:14, 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.