Louisville (SDF) to Fort Lauderdale (FLL): On-Time Performance
Data through May 2026
Louisville (SDF) to Fort Lauderdale (FLL) is a thinner route than most in this dataset — 347 departures over the past year, roughly 7 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 73% arrived on time, noticeably below the national average of 78%. Cancellations are the bigger caveat: 3.2% of scheduled flights never departed.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 24 min
- completed flights
- Cancelled
- 3.2%
- Flights/day
- 0.95
- last 12 months
- Duration
- 2h 31m
- scheduled
- Distance
- 895 mi
Best airline from SDF to FLL
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 74% | 19 min | 4.4% | 522 |
| Allegiant Air | 67% | 36 min | 0.9% | 225 |
Monthly on-time trend
Best time to fly from SDF to FLL
Aim for departures around 5 a.m. (91% on-time); avoid 9 p.m. departures (50%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 23 min |
| Tuesday | 77% | 18 min |
| Wednesday | 70% | 16 min |
| Thursday | 75% | 14 min |
| Friday | 69% | 34 min |
| Saturdaybest | 79% | 15 min |
| Sunday | 70% | 33 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft45%
- Airline operations27%
- National airspace system25%
- Weather2%
Frequently asked questions
- How often are flights from SDF to FLL delayed?
- 27% of SDF–FLL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 24 minutes.
- Which airline is most reliable from SDF to FLL?
- Spirit Airlines has the best on-time record on this route at 74%, based on 522 flights. 2 airlines flew SDF–FLL frequently enough to compare in this period.
- What is the best time of day to fly from SDF to FLL?
- Departures around 5 a.m. have the best record (91% on-time), while departures around 9 p.m. have the worst (50%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SDF to FLL?
- The scheduled SDF–FLL flight time averages 2h 31m over 895 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are SDF to FLL flights cancelled?
- 3.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from SDF to FLL?
- July 2024 was the roughest month in this dataset, with only 42% of arrivals on time. The best was September 2025 at 97%. If your dates are flexible, that 55-point gap is worth planning around.
Explore related pages
More routes from SDF
Based on 773 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.