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Route Reliability

Fort Lauderdale → Louisville

FLL–SDF · 895 miles · Fort Lauderdale–Hollywood International Airport to Louisville Muhammad Ali International Airport

57
A Little Dicey
WanderNerd Reliability Score
69%
Arrive within 15 minutes
15 min
Average arrival delay
4.3%
Cancelled
347
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Allegiant Air70%116 flights
  2. 2.Spirit Airlines68%219 flights

Not enough history to rank: Southwest Airlines (12 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning flights do better here.

FLL–SDF flights departing between 6–9 AM arrived on time 91% of the time, versus 55% between 3–6 PM.

Sunday scaries are real for this one.

FLL–SDF flights arrived on time 85% of the time on Wednesdays and just 50% on Sundays. That gap is worth planning around.

Not much between Allegiant Air and Spirit Airlines.

On this route they all land within 68% to 70% on time. Pick on schedule and price.

Keep a backup plan handy.

This route was cancelled 4.3% of the time. Typical for U.S. flights is around 1–2%.

Flights on this route

The breakdown

On-time by weekday
  • Mon64%(81 flights)
  • Tue76%(25 flights)
  • Wed85%(26 flights)
  • Thu60%(42 flights)
  • Fri77%(79 flights)
  • Sat77%(35 flights)
  • Sun50%(44 flights)
On-time by departure window
  • 6–9 AM91%(70 flights)
  • 9 AM–12 PM61%(49 flights)
  • 12–3 PM86%(29 flights)
  • 3–6 PM55%(123 flights)
  • 6–9 PM83%(24 flights)
  • 9 PM–12 AM57%(37 flights)
On-time trend by month
42%
May

Jun 74% → May 42% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%34
July 202581%41
August 202569%35
September 202590%30
October 202588%33
November 202573%26
December 202548%29
January 202671%24
February 202671%21
March 202636%25
April 202650%22
May 202642%12

Same trip, other airports

Keep nerding

Based on 347 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.