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

Portland → Chicago via Detroit: arrives on time 57%

  1. 12:40 PWM → 14:49 DTW
    DL 426 · Delta · 2h 06m · 84% on time, 1.2% cancelled
  2. 3h 18m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 18:07 DTW → 18:25 MDW
    DL 4677 · Delta, flown by Endeavor · 1h 22m · 60% on time, 1.2% cancelled

Total trip 6h 49m, scheduled departure to arrival (Chicago is 1 h behind Portland). Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 153 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 3h 18m layover.
Arrives on time57%First flight not cancelled (1.2% are) × connection made (98%) × second flight not cancelled (1.2% are) and within 15 minutes (60%).
Total trip6h 49mPWM 12:40 to MDW 18:25, 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.