Fort Lauderdale (FLL) to Louisville (SDF): On-Time Performance
Data through July 2026
Fort Lauderdale (FLL) to Louisville (SDF) is a thinner route than most in this dataset — 297 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 69% arrived on time, noticeably below the national average of 78%.
- On-time
- 69%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 2.6%
- Flights/day
- 0.81
- last 12 months
- Duration
- 2h 32m
- scheduled
- Distance
- 895 mi
Best airline from FLL to SDF
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Allegiant Airmost reliable | 73% | 26 min | 0.8% | 244 |
| Spirit Airlines | 68% | 20 min | 3.7% | 492 |
Monthly on-time trend
Best time to fly from FLL to SDF
Aim for departures around 6 a.m. (91% on-time); avoid 5 p.m. departures (44%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 69% | 24 min |
| Tuesday | 75% | 13 min |
| Wednesdaybest | 76% | 13 min |
| Thursday | 64% | 18 min |
| Friday | 74% | 24 min |
| Saturday | 70% | 20 min |
| Sunday | 56% | 34 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft24%
- Airline operations34%
- National airspace system36%
- Weather6%
Frequently asked questions
- How often are flights from FLL to SDF delayed?
- 31% of FLL–SDF 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 23 minutes.
- Which airline is most reliable from FLL to SDF?
- Allegiant Air has the best on-time record on this route at 73%, based on 244 flights. 2 airlines flew FLL–SDF frequently enough to compare in this period.
- What is the best time of day to fly from FLL to SDF?
- Departures around 6 a.m. have the best record (91% on-time), while departures around 5 p.m. have the worst (44%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from FLL to SDF?
- The scheduled FLL–SDF flight time averages 2h 32m over 895 miles. Actual arrival times vary — flights on this route land 15+ minutes late 31% of the time.
- How often are FLL to SDF flights cancelled?
- 2.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from FLL to SDF?
- March 2026 was the roughest month in this dataset, with only 36% of arrivals on time. The best was September 2025 at 90%. If your dates are flexible, that 54-point gap is worth planning around.
Explore related pages
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Related guides
Based on 763 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.