Republic Airways is the most reliable airline on the BUF to IAD route with a 88% on-time rate, compared to United Airlines at 85%. Based on 359 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BUF to IAD
Buffalo to Washington — airline reliability comparison
On-Time Rate by Airline
Republic Airways88%
United Airlines85%
BUF to IAD Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Republic AirwaysYXBest | 88% | 2.3% | 91m | 359 |
| United AirlinesUAWorst | 85% | 0.0% | 45m | 27 |
Route Overview
88%
Overall On-Time
90m
Avg Delay
2%
Cancel Rate
394
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.