Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Ontario via Denver: arrives on time 88%
-
05:15 IAH → 06:47 DENUA 1874 · United · 2h 32m · 96% on time, 0.0% cancelled
-
1h 57m layover in Denver (DEN) · 90 min minimum on separate tickets
-
08:44 DEN → 10:05 ONTF9 2907 · Frontier · 2h 21m · 91% on time, 0.0% cancelled
Total trip 6h 50m, scheduled departure to arrival (Ontario is 2 h behind Houston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection97%The first flight arrived more than 27 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 1h 57m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip6h 50mIAH 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.