Best Time to Fly SDF to FLL: On-Time Stats by Hour & Airline
Louisville Muhammad Ali International → Fort Lauderdale-Hollywood International
Data through July 2026 · Last updated October 18, 2026
296 flights were scheduled from Louisville (SDF) to Fort Lauderdale (FLL) in the last 12 months, and 63.1% of those that flew arrived on time, 14.5 points below the US average of 77.6%.
Spirit Airlines was the most punctual of the 2 airlines on the route at 72.3%, while Allegiant Air trailed at 49.1%.
September has been the best month (92% on time) and Friday the weakest day of the week (69%).
4.7% of flights were cancelled, versus 1.8% nationally.
SDF to FLL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlines | 72.3% | 61 min | 7.7% | 168 |
| Allegiant Air | 49.1% | 97 min | 0.8% | 117 |
| Southwest Airlines | Limited data | 11 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SDF to FLL
On-time arrival % by scheduled departure hour (local time), 723 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 90.6% | 11.1% | 72 |
| 6am–7am | Limited data | 20 | |
| 7am–8am | Limited data | 1 | |
| 8am–9am | Limited data | 22 | |
| 9am–10am | 69.8% | 0.0% | 43 |
| 10am–11am | Limited data | 27 | |
| 11am–12pm | 81.4% | 2.3% | 44 |
| 12pm–1pm | 85.2% | 3.6% | 56 |
| 1pm–2pm | Limited data | 1 | |
| 2pm–3pm | Limited data | 3 | |
| 3pm–4pm | 59.5% | 8.7% | 46 |
| 4pm–5pm | Limited data | 1 | |
| 5pm–6pm | 81.8% | 0.0% | 55 |
| 6pm–7pm | 69.2% | 0.0% | 91 |
| 7pm–8pm | 69.0% | 3.1% | 130 |
| 8pm–9pm | 67.7% | 1.4% | 69 |
| 9pm–10pm | 40.5% | 2.6% | 38 |
| 10pm–11pm | Limited data | 4 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SDF to FLL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 16 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 46.0% | -30.8 pts | 15.9% | 44 |
| Summer peak (Jun 15 - Aug 15) | 70.8% | -5.9 pts | 3.2% | 124 |
| All other days | 76.8% | — | 1.9% | 539 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).