Republic Airways is the most reliable airline on the SDF to IAD route with a 94% on-time rate. Based on 1,433 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SDF to IAD
Louisville to Washington — airline reliability comparison
On-Time Rate by Airline
Republic Airways94%
SDF to IAD Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Republic AirwaysYXBest | 94% | 0.7% | 46m | 1,433 |
Route Overview
94%
Overall On-Time
54m
Avg Delay
0.6%
Cancel Rate
1,441
Total Flights
Flying out of SDF? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.