BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
IAH→FLL

Houston, TX (IAH) to Fort Lauderdale, FL (FLL) flight delay odds

78.8% of 2,760 official scheduled IAH-to-FLL flights arrived on time; 13.2% arrived at least 30 minutes late and 1.2% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
78.8%arrived on time
13.2%30+ min late
1.2%cancelled
2,760scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.7%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+4.8 mincompleted flights

Which departure time was most reliable for IAH to FLL?

Among qualifying IAH-to-FLL departure window results, Early morning had the highest on-time rate: 82.0% of 782 flights. Evening was lowest at 74.4% across 571 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning78282.0%10.2%1.7%
Late morning47077.4%13.6%0.9%
Afternoon93779.5%12.2%1.4%
Evening57174.4%18.4%0.5%

Which weekday was most reliable for IAH to FLL?

Among qualifying IAH-to-FLL weekday results, Tuesday had the highest on-time rate: 87.1% of 350 flights. Sunday was lowest at 71.6% across 412 flights.

DayFlightsOn time30+ minCancelled
Monday41180.3%10.7%1.5%
Tuesday35087.1%6.6%0.9%
Wednesday37682.7%10.4%0.5%
Thursday41477.5%13.8%1.0%
Friday41277.4%14.3%1.2%
Saturday38576.4%15.6%1.6%
Sunday41271.6%19.7%1.7%

Which airline was most reliable for IAH to FLL?

Among qualifying IAH-to-FLL airline results, United Airlines had the highest on-time rate: 84.2% of 1,792 flights. Frontier Airlines was lowest at 56.7% across 104 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines1,79284.2%9.5%0.7%
Spirit Airlines86470.3%19.6%1.9%
Frontier Airlines10456.7%22.1%3.8%

Which month was most reliable for IAH to FLL?

Among qualifying IAH-to-FLL month results, September 2025 had the highest on-time rate: 88.8% of 197 flights. March 2026 was lowest at 63.5% across 293 flights.

MonthFlightsOn time30+ minCancelled
July 202519468.6%19.1%1.0%
August 202519477.3%15.5%1.0%
September 202519788.8%8.1%0.5%
October 202526586.4%6.0%0.0%
November 202526583.4%9.1%2.3%
December 202528379.2%15.5%0.0%
January 202627186.0%7.0%2.6%
February 202624884.3%9.3%1.2%
March 202629363.5%24.2%3.1%
April 202626279.0%13.4%1.1%
May 202615875.9%15.2%0.0%
June 202613067.7%18.5%0.0%

What drove IAH to FLL delay minutes?

Airline was the largest recorded IAH-to-FLL delay category, accounting for 33.7% of 36,479 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.7%
Late aircraft29.3%
National airspace31.8%
Weather4.9%
Security0.4%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.