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

Portland → Dulles via Seattle: arrives on time 78%

  1. 13:48 PDX → 14:43 SEA
    AS 2205 · Alaska, flown by Horizon · 55m · 71% on time, 0.0% cancelled
  2. 1h 18m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 16:01 SEA → 23:59 IAD
    AS 406 · Alaska · 4h 58m · 81% on time, 0.7% cancelled

Total trip 7h 11m, scheduled departure to arrival (Dulles is 3 h ahead of Portland). Times are local. Both flew on 51 of the last 56 days.

Makes the connection97%The first flight arrived more than 33 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 18m layover.
Arrives on time78%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.7% are) and within 15 minutes (81%).
Total trip7h 11mPDX 13:48 to IAD 23:59, 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.