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

Boston → Portland via Seattle: arrives on time 75%

  1. 17:56 BOS → 21:26 SEA
    AS 304 · Alaska · 6h 30m · 66% on time, 0.0% cancelled
  2. 2h 00m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 23:26 SEA → 00:22 PDX +1 day
    AS 2377 · Alaska, flown by Horizon · 56m · 86% on time, 4.5% cancelled

Total trip 9h 26m, scheduled departure to arrival (Portland is 3 h behind Boston). Times are local. Both flew on 22 of the last 56 days.

Makes the connection92%The first flight arrived more than 75 minutes late on 8% of the days it flew: too late for the 45-minute minimum connection on a 2h 00m layover.
Arrives on time75%First flight not cancelled (0.0% are) × connection made (92%) × second flight not cancelled (4.5% are) and within 15 minutes (86%).
Total trip9h 26mBOS 17:56 to PDX 00:22, 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.