Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Portland → St Louis via Denver: arrives on time 89%

  1. 05:00 PDX → 08:31 DEN
    UA 459 · United · 2h 31m · 97% on time, 0.3% cancelled
  2. 1h 34m layover in Denver (DEN) · 90 min minimum on separate tickets
  3. 10:05 DEN → 13:20 STL
    WN 1753 · Southwest · 2h 15m · 96% on time, 0.0% cancelled

Total trip 6h 20m, scheduled departure to arrival (St Louis is 2 h ahead of Portland). Times are local. Both flew on 47 of the last 56 days.

Makes the connection93%The first flight arrived more than 4 minutes late on 7% of the days it flew: too late for the 90-minute minimum connection on a 1h 34m layover.
Arrives on time89%First flight not cancelled (0.3% are) × connection made (93%) × second flight not cancelled (0.0% are) and within 15 minutes (96%).
Total trip6h 20mPDX 05:00 to STL 13:20, 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.