FLL to SDF flight delays & on-time performance
Nonstop flights from Fort Lauderdale Hollywood International Airport to Louisville Muhammad Ali International Airport · 895 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at FLL or SDF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Fort Lauderdale (FLL) to Louisville (SDF) arrived on time 63% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.4% were cancelled, and 16% arrived an hour or more late.
- Spirit Airlines was the most punctual airline here (65% on time); Allegiant Air was the least (59%).
- Departures scheduled around 6am did best (95% on time); around 5pm did worst (23%).
- Wednesday was the most reliable day to fly (89% on time) and Sunday the least (43%).
- The largest source of delay minutes was air traffic control & airport congestion (40%).
Which airline is most on time from FLL to SDF?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 67% | 0.0% | 18 min | 0.0% | 12 |
| Spirit Airlines | 65% | 7.1% | 23 min | 12.8% | 168 |
| Allegiant Air | 59% | 0.9% | 37 min | 22.4% | 117 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am95%22 flights
- 8am83%30 flights
- 9am86%23 flights
- 11am33%26 flights
- 12pm85%15 flights
- 2pm88%16 flights
- 3pm69%36 flights
- 4pm45%40 flights
- 5pm23%41 flights
- 7pm86%22 flights
- 9pm38%18 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday52%1.4% cancelled
- Tuesday68%9.5% cancelled
- Wednesday89%5.0% cancelled
- Thursday63%7.9% cancelled
- Friday70%1.4% cancelled
- Saturday75%3.4% cancelled
- Sunday43%9.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion40%
- Airline (crew, maintenance, cleaning, fueling)26%
- Late-arriving aircraft22%
- Extreme weather12%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)54%
- Extreme weather46%
- Air traffic control & airport congestion0%
- Security0%
FLL to SDF: common questions
- How often are FLL to SDF flights on time?
- 63% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Fort Lauderdale to Louisville cancelled?
- 4.4% of scheduled flights were cancelled (13 of 297).
- How long are typical delays?
- Across all flights the average arrival delay was 28 min (early arrivals count as zero). Flights that were late arrived 73 min behind schedule on average, and 16.2% of flights were an hour or more late.
- How long is taxi time at FLL?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SDF to FLL — 63% on time
More flights from Fort Lauderdale
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: FLL → SDF, nonstop flights by US airlines that report to the DOT. How we calculate this.