SDF to FLL flight delays & on-time performance
Nonstop flights from Louisville Muhammad Ali International Airport to Fort Lauderdale Hollywood International Airport · 895 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SDF or FLL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Louisville (SDF) to Fort Lauderdale (FLL) arrived on time 63% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.7% were cancelled, and 18% arrived an hour or more late.
- Spirit Airlines was the most punctual airline here (72% on time); Allegiant Air was the least (49%).
- Departures scheduled around 8am did best (95% on time); around 9pm did worst (5%).
- Saturday was the most reliable day to fly (85% on time) and Sunday the least (53%).
- The largest source of delay minutes was late-arriving aircraft (61%).
Which airline is most on time from SDF to FLL?
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 | 82% | 0.0% | 20 min | 9.1% | 11 |
| Spirit Airlines | 72% | 7.7% | 17 min | 10.3% | 168 |
| Allegiant Air | 49% | 0.9% | 50 min | 29.3% | 117 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am77%20 flights
- 8am95%22 flights
- 9am68%22 flights
- 10am100%10 flights
- 11am83%30 flights
- 12pm80%27 flights
- 3pm54%41 flights
- 6pm76%33 flights
- 7pm51%39 flights
- 8pm25%24 flights
- 9pm5%22 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday56%2.7% cancelled
- Tuesday75%4.0% cancelled
- Wednesday74%5.0% cancelled
- Thursday70%6.3% cancelled
- Friday58%2.7% cancelled
- Saturday85%10.0% cancelled
- Sunday53%7.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft61%
- Air traffic control & airport congestion23%
- Airline (crew, maintenance, cleaning, fueling)15%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)57%
- Extreme weather43%
- Air traffic control & airport congestion0%
- Security0%
SDF to FLL: common questions
- How often are SDF to FLL 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 Louisville to Fort Lauderdale cancelled?
- 4.7% of scheduled flights were cancelled (14 of 296).
- How long are typical delays?
- Across all flights the average arrival delay was 31 min (early arrivals count as zero). Flights that were late arrived 82 min behind schedule on average, and 18.1% of flights were an hour or more late.
- How long is taxi time at SDF?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: FLL to SDF — 63% on time
More flights from Louisville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SDF → FLL, nonstop flights by US airlines that report to the DOT. How we calculate this.