Republic Airways is the most reliable airline on the BNA to IAD route with a 89% on-time rate, compared to Allegiant Air at 78%. Based on 37 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BNA to IAD
Nashville to Washington — airline reliability comparison
On-Time Rate by Airline
Republic Airways89%
United Airlines82%
Allegiant Air78%
BNA to IAD Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Republic AirwaysYXBest | 89% | 0.0% | 39m | 37 |
| United AirlinesUA | 82% | 0.9% | 76m | 3,278 |
| Allegiant AirG4Worst | 78% | 0.6% | 84m | 210 |
Route Overview
82%
Overall On-Time
79m
Avg Delay
0.8%
Cancel Rate
3,639
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.