Republic Airways is the most reliable airline on the CMH to IAD route with a 89% on-time rate, compared to United Airlines at 84%. Based on 2,530 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: CMH to IAD
Columbus to Washington — airline reliability comparison
On-Time Rate by Airline
Republic Airways89%
United Airlines84%
CMH to IAD Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Republic AirwaysYXBest | 89% | 1.0% | 58m | 2,530 |
| United AirlinesUAWorst | 84% | 1.1% | 70m | 476 |
Route Overview
88%
Overall On-Time
65m
Avg Delay
1.2%
Cancel Rate
3,008
Total Flights
Flying out of CMH? 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.