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

Chicago → Ontario via Denver: arrives on time 90%

  1. 05:15 MDW → 06:50 DEN
    WN 2989 · Southwest · 2h 35m · 98% on time, 0.0% cancelled
  2. 1h 54m layover in Denver (DEN) · 90 min minimum on separate tickets
  3. 08:44 DEN → 10:05 ONT
    F9 2907 · Frontier · 2h 21m · 91% on time, 0.0% cancelled

Total trip 6h 50m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 47 of the last 56 days.

Makes the connection100%The first flight arrived more than 24 minutes late on <1% of the days it flew: too late for the 90-minute minimum connection on a 1h 54m layover.
Arrives on time90%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip6h 50mMDW 05:15 to ONT 10:05, 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.