Southwest Airlines is the most reliable airline on the STL to MCO route with a 81% on-time rate, compared to Spirit Airlines at 67%. Based on 6,960 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: STL to MCO
St. Louis to Orlando — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines81%
Frontier Airlines72%
Spirit Airlines67%
STL to MCO Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 81% | 0.9% | 58m | 6,960 |
| Frontier AirlinesF9 | 72% | 2.1% | 99m | 1,328 |
| Spirit AirlinesNKWorst | 67% | 3.4% | 78m | 557 |
Route Overview
79%
Overall On-Time
69m
Avg Delay
1.2%
Cancel Rate
8,858
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.