Charlotte to Chicago — airline reliability comparison
Republic Airways is the most reliable airline on the CLT to ORD route with a 84% on-time rate, compared to Frontier Airlines at 57%. Based on 558 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 |
|---|---|---|---|---|
| Republic AirwaysYXBest | 84% | 1.8% | 73m | 558 |
| SkyWest AirlinesOO | 83% | 4.6% | 101m | 221 |
| Spirit AirlinesNK | 75% | 1.3% | 89m | 286 |
| United AirlinesUA | 75% | 1.4% | 80m | 3,300 |
| American AirlinesAA | 75% | 1.5% | 69m | 11,006 |
| Frontier AirlinesF9Worst | 57% | 2.9% | 96m | 281 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.