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

Seattle → Boise via Portland: arrives on time 91%

  1. 07:30 SEA → 08:39 PDX
    DL 3953 · Delta, flown by SkyWest · 1h 09m · 94% on time, 0.3% cancelled
  2. 1h 51m layover in Portland (PDX) · 90 min minimum on separate tickets
  3. 10:30 PDX → 12:49 BOI
    AS 2089 · Alaska, flown by Horizon · 1h 19m · 96% on time, 0.0% cancelled

Total trip 4h 19m, scheduled departure to arrival (Boise is 1 h ahead of Seattle). Times are local. Both flew on 56 of the last 56 days.

Makes the connection95%The first flight arrived more than 21 minutes late on 5% of the days it flew: too late for the 90-minute minimum connection on a 1h 51m layover.
Arrives on time91%First flight not cancelled (0.3% are) × connection made (95%) × second flight not cancelled (0.0% are) and within 15 minutes (96%).
Total trip4h 19mSEA 07:30 to BOI 12:49, 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.