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

Portland → Chicago via Seattle: arrives on time 80%

  1. 21:30 PDX → 22:27 SEA
    AS 2421 · Alaska, flown by Horizon · 57m · 90% on time, 0.0% cancelled
  2. 1h 50m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 00:17 SEA → 06:20 ORD +1 day
    AS 328 · Alaska · 4h 03m · 83% on time, 0.9% cancelled

Total trip 6h 50m, scheduled departure to arrival (Chicago is 2 h ahead of Portland). Times are local. Both flew on 50 of the last 56 days.

Makes the connection98%The first flight arrived more than 65 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 50m layover.
Arrives on time80%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.9% are) and within 15 minutes (83%).
Total trip6h 50mPDX 21:30 to ORD 06:20, 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.