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

Ontario → Chicago via Houston: arrives on time 66%

  1. 05:45 ONT → 11:04 IAH
    UA 1936 · United · 3h 19m · 91% on time, 0.5% cancelled
  2. 2h 37m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 13:41 IAH → 16:39 ORD
    UA 2458 · United · 2h 58m · 68% on time, 0.0% cancelled

Total trip 8h 54m, scheduled departure to arrival (Chicago is 2 h ahead of Ontario). Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 112 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 37m layover.
Arrives on time66%First flight not cancelled (0.5% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (68%).
Total trip8h 54mONT 05:45 to ORD 16:39, 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.