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

Chicago → Ontario via Las Vegas: arrives on time 72%

  1. 10:10 MDW → 12:00 LAS
    WN 2794 · Southwest · 3h 50m · 81% on time, 0.0% cancelled
  2. 1h 59m layover in Las Vegas (LAS) · 90 min minimum on separate tickets
  3. 13:59 LAS → 15:09 ONT
    F9 1357 · Frontier · 1h 10m · 82% on time, 0.4% cancelled

Total trip 6h 59m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 54 of the last 56 days.

Makes the connection87%The first flight arrived more than 29 minutes late on 13% of the days it flew: too late for the 90-minute minimum connection on a 1h 59m layover.
Arrives on time72%First flight not cancelled (0.0% are) × connection made (87%) × second flight not cancelled (0.4% are) and within 15 minutes (82%).
Total trip6h 59mMDW 10:10 to ONT 15:09, 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.