tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Portland → Boise via Seattle: arrives on time 88%

  1. 05:00 PDX → 05:53 SEA
    AS 2431 · Alaska, flown by Horizon · 53m · 94% on time, 1.9% cancelled
  2. 2h 42m layover in Seattle (SEA) · 90 min minimum on separate tickets
  3. 08:35 SEA → 11:15 BOI
    DL 3678 · Delta, flown by SkyWest · 1h 40m · 91% on time, 0.0% cancelled

Total trip 5h 15m, scheduled departure to arrival (Boise is 1 h ahead of Portland). Times are local. Both flew on 52 of the last 56 days.

Makes the connection99%The first flight arrived more than 72 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 2h 42m layover.
Arrives on time88%First flight not cancelled (1.9% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip5h 15mPDX 05:00 to BOI 11:15, 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.