Southwest Airlines is the most reliable airline on the ONT to HOU route with a 80% on-time rate. Based on 1,015 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: ONT to HOU
Ontario to Houston — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines80%
ONT to HOU Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 80% | 0.5% | 43m | 1,015 |
Route Overview
80%
Overall On-Time
42m
Avg Delay
0.5%
Cancel Rate
1,015
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.