IAH → MIA Frontier Airlines

Frontier Airlines · Houston, TX to Miami, FL · 154 flights, 2025-07-03 to 2026-06-29 · aggregated across 2 flight numbers

This route runs much more reliably at some times of day than others — 81% on-time departing 9pm–12am vs. 43% departing 3–6pm.
On-time arrival
70%
Median delay
-3 min
90th percentile
+89 min
Cancellation rate
2%

How on-time is Frontier Airlines from IAH to MIA?

Across every Frontier Airlines flight number on IAH → MIA (154 flights, 2025-07-03 to 2026-06-29), 70% arrived within 15 minutes of schedule. Median arrival delay -3 min; the worst 10% ran +89 min or later. 2% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time10570%
16-30 min128%
31-60 min139%
61-120 min96%
2+ hrs128%

Performance by month

MonthFlightsOn-timeAvg delay
2025-07944%+79 min
2025-081070%+12 min
2025-091385%+48 min
2025-101191%+2 min
2025-111362%+3 min
2025-12757%+5 min
2026-011377%+2 min
2026-021283%+5 min
2026-03967%+21 min
2026-041331%+139 min
2026-052075%+87 min
2026-062176%+0 min

Performance by day of week

DayFlightsOn-time
Mon2374%
Tue4100%
Wed333%
Thu3476%
Fri2090%
Sat3053%
Sun3762%

F9 flight numbers on IAH → MIA

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…