Spirit Airlines is the most reliable airline on the FLL to STL route with a 75% on-time rate, compared to Southwest Airlines at 75%. Based on 281 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: FLL to STL
Fort Lauderdale to St. Louis — airline reliability comparison
On-Time Rate by Airline
Spirit Airlines75%
Southwest Airlines75%
FLL to STL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 75% | 3.4% | 52m | 281 |
| Southwest AirlinesWNWorst | 75% | 0.8% | 57m | 2,604 |
Route Overview
75%
Overall On-Time
57m
Avg Delay
1.1%
Cancel Rate
2,908
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.