OnTimeRoutes
F

Frontier Airlines FLL to IAH on-time performance

Frontier Airlines nonstop flights from Fort Lauderdale to Houston · Aug 2025 – Jul 2026

On-time arrivals
49%
arrived < 15 min late
Cancelled
3.0%
4 flights
Avg arrival delay
40 min
77 min when late
Rank on route
#4 of 4
route average 81% on time

Key facts

  • Frontier Airlines flights on FLL to IAH arrived on time 49% of the time in Aug 2025 – Jul 2026.
  • 3% were cancelled, and 19% arrived an hour or more late.
  • That ranks #4 of 4 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (42%).

On-time trend by month

20%60%100%November 2025: 50.0% on time, 0.0% cancelledNov ’25December 2025: 75.0% on time, 0.0% cancelledDec ’25January 2026: 87.5% on time, 0.0% cancelledJan ’26February 2026: 75.0% on time, 0.0% cancelledFeb ’26March 2026: 57.9% on time, 9.5% cancelledMar ’26April 2026: 42.1% on time, 0.0% cancelledApr ’26May 2026: 40.9% on time, 0.0% cancelledMay ’26June 2026: 40.0% on time, 0.0% cancelledJun ’26July 2026: 39.3% on time, 6.7% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft42%
  • Airline (crew, maintenance, cleaning, fueling)36%
  • Air traffic control & airport congestion20%
  • Extreme weather2%
  • Security0%

Other airlines on FLL to IAH

Full FLL to IAH comparison →
Frontier Airlines on-time record across all routes →

134 Frontier Airlines flights tracked on this route; 4 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.