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

Portland → Denver via Chicago: arrives on time 55%

  1. 14:25 PDX → 20:38 ORD
    UA 2336 · United · 4h 13m · 68% on time, 0.0% cancelled
  2. 1h 12m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 21:50 ORD → 23:48 DEN
    UA 377 · United · 2h 58m · 72% on time, 3.3% cancelled

Total trip 8h 23m, scheduled departure to arrival (Denver is 1 h ahead of Portland). Times are local. Both flew on 30 of the last 56 days.

Makes the connection78%The first flight arrived more than 27 minutes late on 22% of the days it flew: too late for the 45-minute minimum connection on a 1h 12m layover.
Arrives on time55%First flight not cancelled (0.0% are) × connection made (78%) × second flight not cancelled (3.3% are) and within 15 minutes (72%).
Total trip8h 23mPDX 14:25 to DEN 23:48, 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.