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

Ontario → Chicago via Oakland: arrives on time 62%

  1. 19:30 ONT → 20:50 OAK
    WN 3082 · Southwest · 1h 20m · 76% on time, 0.0% cancelled
  2. 3h 05m layover in Oakland (OAK) · 45 min minimum on one ticket
  3. 23:55 OAK → 06:00 MDW +1 day
    WN 3059 · Southwest · 4h 05m · 66% on time, 0.0% cancelled

Total trip 8h 30m, scheduled departure to arrival (Chicago is 2 h ahead of Ontario). Times are local. Both flew on 47 of the last 56 days.

Makes the connection94%The first flight arrived more than 140 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 3h 05m layover.
Arrives on time62%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (0.0% are) and within 15 minutes (66%).
Total trip8h 30mONT 19:30 to MDW 06:00, 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.