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

Portland → Detroit via Seattle: arrives on time 84%

  1. 09:30 PDX → 10:55 SEA
    DL 3953 · Delta, flown by SkyWest · 1h 25m · 85% on time, 0.5% cancelled
  2. 3h 35m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 14:30 SEA → 21:48 DTW
    DL 533 · Delta · 4h 18m · 86% on time, 0.9% cancelled

Total trip 9h 18m, scheduled departure to arrival (Detroit is 3 h ahead of Portland). Times are local. Both flew on 55 of the last 56 days.

Makes the connection99%The first flight arrived more than 170 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 35m layover.
Arrives on time84%First flight not cancelled (0.5% are) × connection made (99%) × second flight not cancelled (0.9% are) and within 15 minutes (86%).
Total trip9h 18mPDX 09:30 to DTW 21:48, 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.