tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Atlanta → St Louis via Chicago: arrives on time 83%

  1. 07:25 ATL → 08:35 ORD
    DL 1178 · Delta · 2h 10m · 88% on time, 2.4% cancelled
  2. 3h 57m layover in Chicago (ORD) · 90 min minimum on separate tickets
  3. 12:32 ORD → 13:55 STL
    AA 3815 · American, flown by Envoy · 1h 23m · 86% on time, 1.5% cancelled

Total trip 7h 30m, scheduled departure to arrival (St Louis is 1 h behind Atlanta). Times are local. Both flew on 42 of the last 56 days.

Makes the connection100%The first flight arrived more than 147 minutes late on <1% of the days it flew: too late for the 90-minute minimum connection on a 3h 57m layover.
Arrives on time83%First flight not cancelled (2.4% are) × connection made (100%) × second flight not cancelled (1.5% are) and within 15 minutes (86%).
Total trip7h 30mATL 07:25 to STL 13:55, 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.