Louisville to Chicago — airline reliability comparison
Republic Airways is the most reliable airline on the SDF to ORD route with a 86% on-time rate, compared to SkyWest Airlines at 73%. Based on 4,836 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 | 86% | 1.3% | 64m | 4,836 |
| United AirlinesUA | 78% | 1.5% | 76m | 361 |
| MQ | 74% | 1.7% | 68m | 1,333 |
| SkyWest AirlinesOOWorst | 73% | 2.2% | 87m | 1,664 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.