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

Portland → Ontario via Seattle: arrives on time 84%

  1. 06:19 PDX → 07:17 SEA
    AS 499 · Alaska · 58m · 93% on time, 1.0% cancelled
  2. 1h 16m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 08:33 SEA → 11:14 ONT
    AS 1364 · Alaska · 2h 41m · 90% on time, 4.2% cancelled

Total trip 4h 55m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 31 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 16m layover.
Arrives on time84%First flight not cancelled (1.0% are) × connection made (98%) × second flight not cancelled (4.2% are) and within 15 minutes (90%).
Total trip4h 55mPDX 06:19 to ONT 11:14, 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.