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

Dallas → Columbus via St Louis: arrives on time 35%

  1. 17:25 DAL → 19:10 STL
    WN 2921 · Southwest · 1h 45m · 55% on time, 0.0% cancelled
  2. 1h 25m layover in St Louis (STL) · 45 min minimum on one ticket
  3. 20:35 STL → 22:55 CMH
    WN 4812 · Southwest · 1h 20m · 53% on time, 0.0% cancelled

Total trip 4h 30m, scheduled departure to arrival (Columbus is 1 h ahead of Dallas). Times are local. Both flew on 31 of the last 56 days.

Makes the connection67%The first flight arrived more than 40 minutes late on 33% of the days it flew: too late for the 45-minute minimum connection on a 1h 25m layover.
Arrives on time35%First flight not cancelled (0.0% are) × connection made (67%) × second flight not cancelled (0.0% are) and within 15 minutes (53%).
Total trip4h 30mDAL 17:25 to CMH 22:55, 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.