Spirit Airlines is the most reliable airline on the FLL to SDF route with a 73% on-time rate, compared to Allegiant Air at 70%. Based on 914 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: FLL to SDF
Fort Lauderdale to Louisville — airline reliability comparison
On-Time Rate by Airline
Spirit Airlines73%
Allegiant Air70%
FLL to SDF Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 73% | 3.0% | 59m | 914 |
| Allegiant AirG4Worst | 70% | 0.0% | 118m | 127 |
Route Overview
74%
Overall On-Time
66m
Avg Delay
2%
Cancel Rate
1,344
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.