Frontier Airlines is the most reliable airline on the ONT to MCO route with a 59% on-time rate. Based on 269 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: ONT to MCO
Ontario to Orlando — airline reliability comparison
On-Time Rate by Airline
Frontier Airlines59%
ONT to MCO Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Frontier AirlinesF9Best | 59% | 2.3% | 118m | 269 |
Route Overview
61%
Overall On-Time
124m
Avg Delay
2.2%
Cancel Rate
269
Total Flights
Flying out of ONT? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.