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

Dulles → Portland via Denver: arrives on time 88%

  1. 06:30 IAD → 08:22 DEN
    UA 2031 · United · 3h 52m · 100% on time, 0.0% cancelled
  2. 3h 40m layover in Denver (DEN) · 90 min minimum on separate tickets
  3. 12:02 DEN → 13:46 PDX
    AS 684 · Alaska · 2h 44m · 89% on time, 0.5% cancelled

Total trip 10h 16m, scheduled departure to arrival (Portland is 3 h behind Dulles). Times are local. Both flew on 32 of the last 56 days.

Makes the connection100%The first flight arrived more than 130 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 40m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.5% are) and within 15 minutes (89%).
Total trip10h 16mIAD 06:30 to PDX 13:46, 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.