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

Ontario → Chicago via Portland: arrives on time 83%

  1. 17:32 ONT → 19:49 PDX
    AS 2456 · Alaska, flown by Horizon · 2h 17m · 93% on time, 1.3% cancelled
  2. 3h 10m layover in Portland (PDX) · 45 min minimum on one ticket
  3. 22:59 PDX → 05:00 ORD +1 day
    AS 376 · Alaska · 4h 01m · 87% on time, 2.7% cancelled

Total trip 9h 28m, scheduled departure to arrival (Chicago is 2 h ahead of Ontario). Times are local. Both flew on 51 of the last 56 days.

Makes the connection100%The first flight arrived more than 145 minutes late on <1% of the days it flew: too late for the 45-minute minimum connection on a 3h 10m layover.
Arrives on time83%First flight not cancelled (1.3% are) × connection made (100%) × second flight not cancelled (2.7% are) and within 15 minutes (87%).
Total trip9h 28mONT 17:32 to ORD 05:00, 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.