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

Chicago → Chattanooga via Detroit: arrives on time 57%

  1. 08:52 ORD → 11:23 DTW
    DL 4456 · Delta, flown by SkyWest · 1h 31m · 74% on time, 0.0% cancelled
  2. 1h 02m 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 4h 22m, scheduled departure to arrival (Chattanooga is 1 h ahead of Chicago). Times are local. Both flew on 42 of the last 56 days.

Makes the connection76%The first flight arrived more than 17 minutes late on 24% of the days it flew: too late for the 45-minute minimum connection on a 1h 02m layover.
Arrives on time57%First flight not cancelled (0.0% are) × connection made (76%) × second flight not cancelled (0.3% are) and within 15 minutes (76%).
Total trip4h 22mORD 08:52 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.