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

St Louis → Portland via Denver: arrives on time 16%

  1. 16:00 STL → 17:20 DEN
    WN 3912 · Southwest · 2h 20m · 51% on time, 0.0% cancelled
  2. 55m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 18:15 DEN → 20:00 PDX
    WN 1669 · Southwest · 2h 45m · 41% on time, 0.0% cancelled

Total trip 6h 00m, scheduled departure to arrival (Portland is 2 h behind St Louis). Times are local. Both flew on 39 of the last 56 days.

Makes the connection40%The first flight arrived more than 10 minutes late on 60% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time16%First flight not cancelled (0.0% are) × connection made (40%) × second flight not cancelled (0.0% are) and within 15 minutes (41%).
Total trip6h 00mSTL 16:00 to PDX 20:00, 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.