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

Chicago → Chattanooga via Atlanta: arrives on time 40%

  1. 18:22 ORD → 21:38 ATL
    DL 2740 · Delta · 2h 16m · 71% on time, 14.6% cancelled
  2. 1h 22m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 23:00 ATL → 23:55 CHA
    DL 1059 · Delta · 56m · 68% on time, 6.1% cancelled

Total trip 4h 34m, scheduled departure to arrival (Chattanooga is 1 h ahead of Chicago). Times are local. Both flew on 33 of the last 56 days.

Makes the connection74%The first flight arrived more than 37 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 1h 22m layover.
Arrives on time40%First flight not cancelled (14.6% are) × connection made (74%) × second flight not cancelled (6.1% are) and within 15 minutes (68%).
Total trip4h 34mORD 18:22 to CHA 23:55, 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.