OnTimeRoutes
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United Airlines FLL to IAH on-time performance

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

On-time arrivals
88%
arrived < 15 min late
Cancelled
0.7%
12 flights
Avg arrival delay
10 min
80 min when late
Rank on route
#1 of 4
route average 81% on time

Key facts

  • United Airlines flights on FLL to IAH arrived on time 88% of the time in Aug 2025 – Jul 2026.
  • 0.7% were cancelled, and 5% arrived an hour or more late.
  • That ranks #1 of 4 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (38%).

On-time trend by month

60%80%100%July 2025: 80.3% on time, 1.7% cancelledJul ’25August 2025: 83.3% on time, 0.9% cancelledAug ’25September 2025: 94.3% on time, 0.0% cancelledSep ’25October 2025: 94.9% on time, 0.0% cancelledOct ’25November 2025: 87.5% on time, 3.4% cancelledNov ’25December 2025: 87.4% on time, 0.0% cancelledDec ’25January 2026: 91.3% on time, 0.6% cancelledJan ’26February 2026: 93.5% on time, 0.0% cancelledFeb ’26March 2026: 85.6% on time, 2.2% cancelledMar ’26April 2026: 86.5% on time, 0.0% cancelledApr ’26May 2026: 85.9% on time, 0.0% cancelledMay ’26June 2026: 86.2% on time, 0.0% cancelledJun ’26July 2026: 79.0% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion38%
  • Late-arriving aircraft30%
  • Airline (crew, maintenance, cleaning, fueling)29%
  • Extreme weather3%
  • Security0%

Other airlines on FLL to IAH

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

1,830 United Airlines flights tracked on this route; 12 cancelled, 4 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.