Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Grand Rapids via Denver: arrives on time 87%
-
09:32 IAH → 11:08 DENUA 1450 · United · 2h 36m · 85% on time, 0.0% cancelled
-
4h 00m layover in Denver (DEN) · 90 min minimum on separate tickets
-
15:08 DEN → 19:44 GRRF9 1248 · Frontier · 2h 34m · 89% on time, 0.0% cancelled
Total trip 9h 10m, scheduled departure to arrival (Grand Rapids is 1 h ahead of Houston). Times are local. Both flew on 27 of the last 56 days.
Makes the connection98%The first flight arrived more than 150 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 4h 00m layover.
Arrives on time87%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (89%).
Total trip9h 10mIAH 09:32 to GRR 19:44, 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.