Southwest Airlines is the most reliable airline on the MCO to STL route with a 77% on-time rate, compared to Spirit Airlines at 67%. Based on 6,956 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MCO to STL
Orlando to St. Louis — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines77%
Frontier Airlines75%
Spirit Airlines67%
MCO to STL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 77% | 0.9% | 56m | 6,956 |
| Frontier AirlinesF9 | 75% | 1.4% | 77m | 1,328 |
| Spirit AirlinesNKWorst | 67% | 2.7% | 65m | 558 |
Route Overview
75%
Overall On-Time
62m
Avg Delay
1%
Cancel Rate
8,855
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.