Southwest Airlines is the most reliable airline on the STL to PBI route with a 50% on-time rate. Based on 76 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: STL to PBI
St. Louis to West Palm Beach — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines50%
STL to PBI Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 50% | 0.0% | 70m | 76 |
Route Overview
51%
Overall On-Time
70m
Avg Delay
0%
Cancel Rate
76
Total Flights
Flying out of STL? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.