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

Portland → Detroit via Seattle: arrives on time 83%

  1. 05:00 PDX → 05:53 SEA
    AS 2431 · Alaska, flown by Horizon · 53m · 94% on time, 1.9% cancelled
  2. 3h 25m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 09:18 SEA → 16:33 DTW
    AS 313 · Alaska · 4h 15m · 85% on time, 0.3% cancelled

Total trip 8h 33m, scheduled departure to arrival (Detroit is 3 h ahead of Portland). Times are local. Both flew on 52 of the last 56 days.

Makes the connection100%The first flight arrived more than 160 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 25m layover.
Arrives on time83%First flight not cancelled (1.9% are) × connection made (100%) × second flight not cancelled (0.3% are) and within 15 minutes (85%).
Total trip8h 33mPDX 05:00 to DTW 16:33, 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.