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

Dulles → Portland via Seattle: arrives on time 83%

  1. 09:30 IAD → 12:16 SEA
    AS 361 · Alaska · 5h 46m · 90% on time, 1.9% cancelled
  2. 1h 29m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 13:45 SEA → 14:48 PDX
    AS 3204 · Alaska, flown by SkyWest · 1h 03m · 88% on time, 0.0% cancelled

Total trip 8h 18m, scheduled departure to arrival (Portland is 3 h behind Dulles). Times are local. Both flew on 52 of the last 56 days.

Makes the connection96%The first flight arrived more than 44 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 29m layover.
Arrives on time83%First flight not cancelled (1.9% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (88%).
Total trip8h 18mIAD 09:30 to PDX 14:48, 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.