Southwest Airlines is the most reliable airline on the STL to FLL route with a 78% on-time rate, compared to Spirit Airlines at 69%. Based on 2,606 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: STL to FLL
St. Louis to Fort Lauderdale — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines78%
Spirit Airlines69%
STL to FLL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 78% | 0.5% | 52m | 2,606 |
| Spirit AirlinesNKWorst | 69% | 3.4% | 80m | 281 |
Route Overview
77%
Overall On-Time
56m
Avg Delay
0.8%
Cancel Rate
2,910
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.