Chicago to Charleston — airline reliability comparison
Republic Airways is the most reliable airline on the ORD to CHS route with a 88% on-time rate, compared to American Airlines at 74%. Based on 1,327 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 | 88% | 1.6% | 44m | 1,327 |
| MQ | 81% | 1.5% | 48m | 1,319 |
| United AirlinesUA | 80% | 1.2% | 62m | 2,249 |
| SkyWest AirlinesOO | 78% | 1.3% | 62m | 347 |
| American AirlinesAAWorst | 74% | 1.5% | 86m | 301 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.