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

Portland → Dulles via Atlanta: arrives on time 66%

  1. 06:35 PDX → 14:20 ATL
    DL 662 · Delta · 4h 45m · 95% on time, 1.1% cancelled
  2. 2h 32m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:52 ATL → 18:42 IAD
    DL 2902 · Delta · 1h 50m · 71% on time, 5.5% cancelled

Total trip 9h 07m, scheduled departure to arrival (Dulles is 3 h ahead of Portland). Times are local. Both flew on 39 of the last 56 days.

Makes the connection99%The first flight arrived more than 107 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 32m layover.
Arrives on time66%First flight not cancelled (1.1% are) × connection made (99%) × second flight not cancelled (5.5% are) and within 15 minutes (71%).
Total trip9h 07mPDX 06:35 to IAD 18:42, 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.