Louisville (SDF) to Fort Lauderdale (FLL): On-Time Performance
Data through July 2026
Louisville (SDF) to Fort Lauderdale (FLL) is a thinner route than most in this dataset — 296 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 72% arrived on time, noticeably below the national average of 78%. Cancellations are the bigger caveat: 3% of scheduled flights never departed.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 25 min
- completed flights
- Cancelled
- 3.0%
- Flights/day
- 0.81
- last 12 months
- Duration
- 2h 31m
- scheduled
- Distance
- 895 mi
Best airline from SDF to FLL
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 76% | 18 min | 4.3% | 493 |
| Allegiant Air | 64% | 41 min | 0.8% | 244 |
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 (42%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 26 min |
| Tuesday | 79% | 15 min |
| Wednesday | 74% | 16 min |
| Thursday | 77% | 12 min |
| Friday | 67% | 39 min |
| Saturdaybest | 80% | 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 aircraft49%
- Airline operations26%
- National airspace system23%
- Weather2%
Frequently asked questions
- How often are flights from SDF to FLL delayed?
- 28% of SDF–FLL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 25 minutes.
- Which airline is most reliable from SDF to FLL?
- Spirit Airlines has the best on-time record on this route at 76%, based on 493 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 (42%). 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 28% of the time.
- How often are SDF to FLL flights cancelled?
- 3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — 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.
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Based on 763 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.