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

Ontario → Portland via Seattle: arrives on time 50%

  1. 19:41 ONT → 22:30 SEA
    AS 592 · Alaska · 2h 49m · 71% on time, 0.0% cancelled
  2. 56m 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 4h 41m, scheduled departure to arrival. Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.

Makes the connection61%The first flight arrived more than 11 minutes late on 39% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time50%First flight not cancelled (0.0% are) × connection made (61%) × second flight not cancelled (4.5% are) and within 15 minutes (86%).
Total trip4h 41mONT 19:41 to PDX 00:22, 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.