Chicago to Tucson — airline reliability comparison
United Airlines is the most reliable airline on the ORD to TUS route with a 82% on-time rate, compared to at 64%. Based on 633 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 | 82% | 0.8% | 67m | 633 |
| SkyWest AirlinesOO | 78% | 1.2% | 60m | 874 |
| American AirlinesAA | 75% | 0.8% | 67m | 1,992 |
| MQWorst | 64% | 0.0% | 83m | 14 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.