Spirit Airlines is the most reliable airline on the SDF to FLL route with a 74% on-time rate, compared to Allegiant Air at 57%. Based on 914 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SDF to FLL
Louisville to Fort Lauderdale — airline reliability comparison
On-Time Rate by Airline
Spirit Airlines74%
Allegiant Air57%
SDF to FLL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 74% | 3.4% | 82m | 914 |
| Allegiant AirG4Worst | 57% | 0.0% | 144m | 127 |
Route Overview
72%
Overall On-Time
84m
Avg Delay
2.2%
Cancel Rate
1,343
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.