Chicago to San Antonio — airline reliability comparison
SkyWest Airlines is the most reliable airline on the ORD to SAT route with a 86% on-time rate, compared to American Airlines at 72%. Based on 250 flights tracked.
This route involves weather-prone airports and high-congestion airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| SkyWest AirlinesOOBest | 86% | 1.6% | 45m | 250 |
| Republic AirwaysYX | 83% | 2.4% | 64m | 98 |
| United AirlinesUA | 76% | 1.1% | 68m | 2,728 |
| MQ | 74% | 1.6% | 58m | 434 |
| American AirlinesAAWorst | 72% | 1.4% | 70m | 2,250 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.