Austin to Chicago — airline reliability comparison
United Airlines is the most reliable airline on the AUS to ORD route with a 83% on-time rate, compared to Frontier Airlines at 67%. Based on 4,737 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 |
|---|---|---|---|---|
| United AirlinesUABest | 83% | 1.1% | 76m | 4,737 |
| MQ | 80% | 0.9% | 59m | 924 |
| American AirlinesAA | 79% | 1.5% | 102m | 3,766 |
| Republic AirwaysYX | 79% | 2.5% | 81m | 113 |
| Southwest AirlinesWN | 75% | 1.2% | 53m | 1,429 |
| SkyWest AirlinesOO | 71% | 0.0% | 66m | 24 |
| Frontier AirlinesF9Worst | 67% | 4.6% | 148m | 114 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.