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

Portland → Boston via Seattle: arrives on time 40%

  1. 13:48 PDX → 14:43 SEA
    AS 2205 · Alaska, flown by Horizon · 55m · 71% on time, 0.0% cancelled
  2. 53m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 15:36 SEA → 23:59 BOS
    AS 460 · Alaska · 5h 23m · 80% on time, 1.1% cancelled

Total trip 7h 11m, scheduled departure to arrival (Boston is 3 h ahead of Portland). Times are local. Both flew on 52 of the last 56 days.

Makes the connection50%The first flight arrived more than 8 minutes late on 50% of the days it flew: too late for the 45-minute minimum connection on a 53m layover.
Arrives on time40%First flight not cancelled (0.0% are) × connection made (50%) × second flight not cancelled (1.1% are) and within 15 minutes (80%).
Total trip7h 11mPDX 13:48 to BOS 23:59, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.