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

Portland → Chicago via Detroit: arrives on time 83%

  1. 23:15 PDX → 06:30 DTW
    DL 919 · Delta · 4h 15m · 79% on time, 3.4% cancelled
  2. 3h 45m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 10:15 DTW → 10:50 ORD +1 day
    DL 3673 · Delta, flown by SkyWest · 1h 35m · 90% on time, 0.0% cancelled

Total trip 9h 35m, scheduled departure to arrival (Chicago is 2 h ahead of Portland). Times are local. Both flew on 22 of the last 56 days.

Makes the connection96%The first flight arrived more than 180 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 3h 45m layover.
Arrives on time83%First flight not cancelled (3.4% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip9h 35mPDX 23:15 to ORD 10:50, 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.