PlainFlights

Route · FLL → IAH · 2020–2025 BTS data

Fort Lauderdale to Houston

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), FLL to IAH (Fort Lauderdale to Houston) ranks #714 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

78.7%
On-time
-0.3 pts
vs US avg
75 min
Delay when late
13,852
Flights
#714 of 4927
Corpus placement

Cancelled

1.4%

Best Month

Nov 2024 91%

Worst Month

Jul 2024 61%

Distance

966 mi

Carriers

6

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 279 49 1 1 F9,NK,UA
Nov 2025 264 34 6 0 UA,F9,NK
Oct 2025 267 27 0 0 UA,NK
Sep 2025 195 29 0 0 UA,NK
Aug 2025 194 43 1 0 NK,UA
Jul 2025 195 37 2 0 NK,UA
Jun 2025 210 51 0 2 UA,NK
May 2025 221 46 1 1 NK,UA
Apr 2025 226 30 0 0 NK,UA
Mar 2025 248 47 2 1 NK,UA
Feb 2025 196 36 0 0 UA,NK
Jan 2025 238 68 8 1 UA,NK
Dec 2024 245 55 3 0 NK,UA
Nov 2024 208 18 0 0 UA,NK
Oct 2024 226 25 2 0 UA,NK
Sep 2024 193 39 2 0 NK,UA
Aug 2024 203 66 8 0 NK,UA
Jul 2024 211 82 17 0 NK,UA
Jun 2024 207 65 8 0 NK,UA
May 2024 213 76 5 5 NK,UA
Apr 2024 202 46 2 0 NK,UA
Mar 2024 252 84 2 1 NK,UA
Feb 2024 213 37 0 0 NK,UA
Jan 2024 246 92 7 1 NK,UA

FLL–IAH seasonal on-time pattern

Best: November (86.3%) · weakest: June (71.8%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 77.2%

Strongest calendar month

November

86.3% on-time · ~200 flights/mo

Busiest calendar month

March

~235 flights/mo avg

Weakest calendar month

June

71.8% on-time · ~172 flights/mo

Cancellation Rate

1.4%

77 of 5,352 flights

Diversion Rate

0.2%

13 of 5,352 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

FLL - Fort Lauderdale

Full on-time, delay-cause, and seasonal performance for Fort Lauderdale, FL.

FLL on-time profile

IAH - Houston

Full on-time, delay-cause, and seasonal performance for Houston, TX.

IAH on-time profile

Compare the two airports

See FLL and IAH side by side on delays, cancellations, and reliability.

Compare FLL vs IAH

Origin-hub reliability standing

Mid-pack among FLL departures

From FLL, this corridor sits with 32 other 75–85% on-time routes out of 62 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 29 below 75%). Destination: Houston · fleet on-time rank #3604 of 4927.

What the Data Says About FLL to IAH

13,852 tracked flights put the FLL to IAH pairing (Fort Lauderdale to Houston) at a 78.7% on-time rate, squarely in line with the wider network. Delays that do occur run 75.2 minutes on average. Across the 966-mile route and its 6 carriers, the trailing 24 months show 1.4% cancelled and 0.2% diverted (5,352 flights sampled).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 91% on-time, while Jul 2024 came in at just 61% - a 30-point swing worth factoring into travel timing.

On the multi-year calendar, FLL–IAH peaks in November at 86.3% on-time while March carries the heaviest traffic (~235 flights per month) ; the softest month is June at 71.8%, a 14.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does FLL to IAH rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, FLL to IAH ranks #714 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from FLL to IAH? ▼
Flights from Fort Lauderdale to Houston have a 78.7% on-time rate based on 13,852 flights. The average delay is 75.2 minutes. The best recent month was Nov 2024 with 91% on-time.
What is the cancellation rate for FLL to IAH? ▼
Over the last 24 months, 1.4% of flights on this route were cancelled (77 of 5,352 flights) and 0.2% were diverted.
How far is the flight from FLL to IAH? ▼
The flight distance from Fort Lauderdale (FLL) to Houston (IAH) is approximately 966 miles. This route is served by 6 carriers.
When is the best time to fly from FLL to IAH? ▼
The best recent month for on-time performance was Nov 2024 (91% on-time). The worst was Jul 2024 (61% on-time). Consider booking during months with historically better performance.

Airports on this route

FLL Airport

Fort Lauderdale
IAH Airport

Houston
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using FLL–IAH data

FLL–IAH is mid-pack at 78.7% on-time; month and carrier mix move more than the corridor headline.

  • Compare FLL and IAH airport profiles: delay causes and top routes differ even on the same corridor. FLL airport
  • If your dates flex, November (86.3% on-time) beats June (71.8%) on this corridor. Seasonal chart
  • 4 other routes post a similar 78.7% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.