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

Chicago → Ontario via Denver: arrives on time 68%

  1. 14:33 ORD → 16:31 DEN
    UA 2803 · United · 2h 58m · 76% on time, 0.0% cancelled
  2. 2h 49m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 19:20 DEN → 20:42 ONT
    UA 2028 · United · 2h 22m · 75% on time, 0.0% cancelled

Total trip 8h 09m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 55 of the last 56 days.

Makes the connection91%The first flight arrived more than 124 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 2h 49m layover.
Arrives on time68%First flight not cancelled (0.0% are) × connection made (91%) × second flight not cancelled (0.0% are) and within 15 minutes (75%).
Total trip8h 09mORD 14:33 to ONT 20:42, 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.