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

Dulles → Seattle via Denver: arrives on time 86%

  1. 06:30 IAD → 08:22 DEN
    UA 2031 · United · 3h 52m · 100% on time, 0.0% cancelled
  2. 3h 00m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 11:22 DEN → 13:22 SEA
    UA 1424 · United · 3h 00m · 86% on time, 0.8% cancelled

Total trip 9h 52m, scheduled departure to arrival (Seattle is 3 h behind Dulles). Times are local. Both flew on 37 of the last 56 days.

Makes the connection100%The first flight arrived more than 135 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 00m layover.
Arrives on time86%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.8% are) and within 15 minutes (86%).
Total trip9h 52mIAD 06:30 to SEA 13:22, 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.