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

St Louis → Salt Lake City via Denver: arrives on time 17%

  1. 18:40 STL → 20:00 DEN
    WN 3913 · Southwest · 2h 20m · 47% on time, 0.0% cancelled
  2. 55m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 20:55 DEN → 22:40 SLC
    WN 1737 · Southwest · 1h 40m · 40% on time, 0.0% cancelled

Total trip 4h 55m, scheduled departure to arrival (Salt Lake City is 1 h behind St Louis). Times are local. Both flew on 48 of the last 56 days.

Makes the connection43%The first flight arrived more than 10 minutes late on 57% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time17%First flight not cancelled (0.0% are) × connection made (43%) × second flight not cancelled (0.0% are) and within 15 minutes (40%).
Total trip4h 55mSTL 18:40 to SLC 22:40, 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.