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

Boston → Seattle via Portland: arrives on time 87%

  1. 06:03 BOS → 09:19 PDX
    AS 311 · Alaska · 6h 16m · 88% on time, 0.0% cancelled
  2. 2h 01m layover in Portland (PDX) · 90 min minimum on separate tickets
  3. 11:20 PDX → 12:36 SEA
    DL 3818 · Delta, flown by SkyWest · 1h 16m · 91% on time, 0.3% cancelled

Total trip 9h 33m, scheduled departure to arrival (Seattle is 3 h behind Boston). Times are local. Both flew on 55 of the last 56 days.

Makes the connection95%The first flight arrived more than 31 minutes late on 5% of the days it flew: too late for the 90-minute minimum connection on a 2h 01m layover.
Arrives on time87%First flight not cancelled (0.0% are) × connection made (95%) × second flight not cancelled (0.3% are) and within 15 minutes (91%).
Total trip9h 33mBOS 06:03 to SEA 12:36, 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.