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

Columbus → St Louis via Denver: arrives on time 50%

  1. 15:30 CMH → 16:45 DEN
    UA 1389 · United · 3h 15m · 80% on time, 0.6% cancelled
  2. 49m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 17:34 DEN → 20:43 STL
    UA 1422 · United · 2h 09m · 72% on time, 0.3% cancelled

Total trip 6h 13m, scheduled departure to arrival (St Louis is 1 h behind Columbus). Times are local. Both flew on 55 of the last 56 days.

Makes the connection70%The first flight arrived more than 4 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time50%First flight not cancelled (0.6% are) × connection made (70%) × second flight not cancelled (0.3% are) and within 15 minutes (72%).
Total trip6h 13mCMH 15:30 to STL 20:43, 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.