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

Boston → Portland via Seattle: arrives on time 56%

  1. 07:03 BOS → 10:26 SEA
    AS 459 · Alaska · 6h 23m · 75% on time, 0.8% cancelled
  2. 1h 39m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 12:05 SEA → 13:06 PDX
    AS 2181 · Alaska, flown by Horizon · 1h 01m · 60% on time, 0.0% cancelled

Total trip 9h 03m, scheduled departure to arrival (Portland is 3 h behind Boston). Times are local. Both flew on 52 of the last 56 days.

Makes the connection95%The first flight arrived more than 54 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 39m layover.
Arrives on time56%First flight not cancelled (0.8% are) × connection made (95%) × second flight not cancelled (0.0% are) and within 15 minutes (60%).
Total trip9h 03mBOS 07:03 to PDX 13:06, 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.