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

Dulles → Portland via Seattle: arrives on time 82%

  1. 07:00 IAD → 09:45 SEA
    DL 1015 · Delta · 5h 45m · 79% on time, 1.1% cancelled
  2. 3h 50m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 13:35 SEA → 14:46 PDX
    DL 4062 · Delta, flown by SkyWest · 1h 11m · 85% on time, 0.0% cancelled

Total trip 10h 46m, scheduled departure to arrival (Portland is 3 h behind Dulles). Times are local. Both flew on 56 of the last 56 days.

Makes the connection97%The first flight arrived more than 185 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 3h 50m layover.
Arrives on time82%First flight not cancelled (1.1% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (85%).
Total trip10h 46mIAD 07:00 to PDX 14:46, 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.