Chicago to Nashville — airline reliability comparison
Republic Airways is the most reliable airline on the ORD to BNA route with a 83% on-time rate, compared to Frontier Airlines at 65%. Based on 1,252 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 | 83% | 1.2% | 54m | 1,252 |
| Spirit AirlinesNK | 80% | 0.0% | 31m | 15 |
| United AirlinesUA | 79% | 1.7% | 68m | 3,924 |
| MQ | 79% | 1.9% | 52m | 2,453 |
| Southwest AirlinesWN | 78% | 1.3% | 60m | 2,665 |
| SkyWest AirlinesOO | 73% | 2.0% | 89m | 5,567 |
| American AirlinesAA | 70% | 1.7% | 89m | 1,009 |
| Frontier AirlinesF9Worst | 65% | 2.2% | 77m | 276 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.