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

Chicago → Ontario via Portland: arrives on time 88%

  1. 10:05 MDW → 12:25 PDX
    WN 2809 · Southwest · 4h 20m · 84% on time, 0.0% cancelled
  2. 2h 05m layover in Portland (PDX) · 90 min minimum on separate tickets
  3. 14:30 PDX → 16:52 ONT
    AS 2093 · Alaska, flown by Horizon · 2h 22m · 92% on time, 0.0% cancelled

Total trip 8h 47m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 48 of the last 56 days.

Makes the connection96%The first flight arrived more than 35 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 2h 05m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (0.0% are) and within 15 minutes (92%).
Total trip8h 47mMDW 10:05 to ONT 16:52, 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.