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

Portland → Washington via Atlanta: arrives on time 66%

  1. 11:40 PDX → 19:26 ATL
    DL 539 · Delta · 4h 46m · 86% on time, 1.0% cancelled
  2. 2h 29m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 21:55 ATL → 23:44 DCA
    DL 537 · Delta · 1h 49m · 70% on time, 2.7% cancelled

Total trip 9h 04m, scheduled departure to arrival (Washington is 3 h ahead of Portland). Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 104 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 29m layover.
Arrives on time66%First flight not cancelled (1.0% are) × connection made (98%) × second flight not cancelled (2.7% are) and within 15 minutes (70%).
Total trip9h 04mPDX 11:40 to DCA 23:44, 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.