PlainFlights

Route · IAH → FLL · 2020–2025 BTS data

Houston to Fort Lauderdale

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to FLL (Houston to Fort Lauderdale) ranks #713 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

79.3%
On-time
+0.3 pts
vs US avg
76 min
Delay when late
13,860
Flights
#713 of 4927
Corpus placement

Cancelled

1.5%

Best Month

Nov 2024 90%

Worst Month

Jul 2024 57%

Distance

966 mi

Carriers

6

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 283 59 0 0 F9,NK,UA
Nov 2025 265 38 6 0 UA,F9,NK
Oct 2025 265 36 0 0 UA,NK
Sep 2025 197 21 1 0 UA,NK
Aug 2025 194 42 2 0 NK,UA
Jul 2025 194 58 2 1 NK,UA
Jun 2025 210 63 0 1 UA,NK
May 2025 222 50 0 0 NK,UA
Apr 2025 225 39 0 0 NK,UA
Mar 2025 247 47 3 1 NK,UA
Feb 2025 195 28 0 1 UA,NK
Jan 2025 239 51 9 0 UA,NK
Dec 2024 245 47 3 0 NK,UA
Nov 2024 209 21 0 0 UA,NK
Oct 2024 226 27 1 0 UA,NK
Sep 2024 193 36 2 0 NK,UA
Aug 2024 201 61 10 4 NK,UA
Jul 2024 211 91 14 0 NK,UA
Jun 2024 206 65 9 0 NK,UA
May 2024 213 82 5 0 NK,UA
Apr 2024 199 46 2 0 NK,UA
Mar 2024 254 74 3 1 NK,UA
Feb 2024 212 34 0 1 NK,UA
Jan 2024 244 68 8 1 NK,UA

IAH–FLL seasonal on-time pattern

Best: October (86.9%) · weakest: June (70.5%)

65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 78.3%

Strongest calendar month

October

86.9% on-time · ~198 flights/mo

Busiest calendar month

March

~235 flights/mo avg

Weakest calendar month

June

70.5% on-time · ~171 flights/mo

Cancellation Rate

1.5%

80 of 5,349 flights

Diversion Rate

0.2%

11 of 5,349 flights

Explore origin & destination

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

IAH - Houston

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

IAH on-time profile

FLL - Fort Lauderdale

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

FLL on-time profile

Compare the two airports

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

Compare IAH vs FLL

Origin-hub reliability standing

Mid-pack among IAH departures

From IAH, this corridor sits with 79 other 75–85% on-time routes out of 102 tracked departures, not the hub's reliability leaders (17 at ≥85%) and not the softest ( 6 below 75%). Destination: Fort Lauderdale · fleet on-time rank #3408 of 4927.

What the Data Says About IAH to FLL

13,860 tracked flights put the IAH to FLL pairing (Houston to Fort Lauderdale) at a 79.3% on-time rate, squarely in line with the wider network. Delays that do occur run 76.0 minutes on average. Across the 966-mile route and its 6 carriers, the trailing 24 months show 1.5% cancelled and 0.2% diverted (5,349 flights sampled).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 90% on-time, while Jul 2024 came in at just 57% - a 33-point swing worth factoring into travel timing.

On the multi-year calendar, IAH–FLL peaks in October at 86.9% on-time while March carries the heaviest traffic (~235 flights per month) ; the softest month is June at 70.5%, a 16.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAH to FLL rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAH to FLL ranks #713 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 IAH to FLL? ▼
Flights from Houston to Fort Lauderdale have a 79.3% on-time rate based on 13,860 flights. The average delay is 76.0 minutes. The best recent month was Nov 2024 with 90% on-time.
What is the cancellation rate for IAH to FLL? ▼
Over the last 24 months, 1.5% of flights on this route were cancelled (80 of 5,349 flights) and 0.2% were diverted.
How far is the flight from IAH to FLL? ▼
The flight distance from Houston (IAH) to Fort Lauderdale (FLL) is approximately 966 miles. This route is served by 6 carriers.
When is the best time to fly from IAH to FLL? ▼
The best recent month for on-time performance was Nov 2024 (90% on-time). The worst was Jul 2024 (57% on-time). Consider booking during months with historically better performance.

Airports on this route

IAH Airport

Houston
FLL Airport

Fort Lauderdale
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 IAH–FLL data

IAH–FLL is mid-pack at 79.3% on-time; month and carrier mix move more than the corridor headline.

  • Compare IAH and FLL airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
  • If your dates flex, October (86.9% on-time) beats June (70.5%) on this corridor. Seasonal chart
  • 4 other routes post a similar 79.3% 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.