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

Jacksonville → Chicago via St Louis: arrives on time 65%

  1. 16:55 JAX → 18:05 STL
    WN 449 · Southwest · 2h 10m · 51% on time, 0.0% cancelled
  2. 3h 40m layover in St Louis (STL) · 45 min minimum on one ticket
  3. 21:45 STL → 22:55 MDW
    WN 3957 · Southwest · 1h 05m · 67% on time, 0.0% cancelled

Total trip 6h 55m, scheduled departure to arrival (Chicago is 1 h behind Jacksonville). Times are local. Both flew on 39 of the last 56 days.

Makes the connection98%The first flight arrived more than 175 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 3h 40m layover.
Arrives on time65%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (67%).
Total trip6h 55mJAX 16:55 to MDW 22:55, 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.