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

Portland → Chicago via Las Vegas: arrives on time 90%

  1. 17:50 PDX → 20:12 LAS
    AS 531 · Alaska · 2h 22m · 84% on time, 0.8% cancelled
  2. 3h 18m layover in Las Vegas (LAS) · 90 min minimum on separate tickets
  3. 23:30 LAS → 05:11 ORD +1 day
    UA 2102 · United · 3h 41m · 92% on time, 0.3% cancelled

Total trip 9h 21m, scheduled departure to arrival (Chicago is 2 h ahead of Portland). Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 108 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 3h 18m layover.
Arrives on time90%First flight not cancelled (0.8% are) × connection made (98%) × second flight not cancelled (0.3% are) and within 15 minutes (92%).
Total trip9h 21mPDX 17:50 to ORD 05:11, 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.