Charleston to Chicago — airline reliability comparison
United Airlines is the most reliable airline on the CHS to ORD route with a 86% on-time rate, compared to at 80%. Based on 2,248 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 | 86% | 1.6% | 81m | 2,248 |
| Republic AirwaysYX | 81% | 2.1% | 63m | 1,332 |
| American AirlinesAA | 81% | 1.3% | 115m | 300 |
| SkyWest AirlinesOO | 80% | 2.0% | 79m | 347 |
| MQWorst | 80% | 1.6% | 59m | 1,318 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.