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

St Louis → Chicago via Atlanta: arrives on time 56%

  1. 18:58 STL → 21:44 ATL
    DL 1393 · Delta · 1h 48m · 83% on time, 4.5% cancelled
  2. 1h 06m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:50 ATL → 23:53 ORD
    DL 1199 · Delta · 2h 09m · 71% on time, 2.9% cancelled

Total trip 5h 01m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection84%The first flight arrived more than 21 minutes late on 16% of the days it flew: too late for the 45-minute minimum connection on a 1h 06m layover.
Arrives on time56%First flight not cancelled (4.5% are) × connection made (84%) × second flight not cancelled (2.9% are) and within 15 minutes (71%).
Total trip5h 01mSTL 18:58 to ORD 23:53, 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.