United Airlines is the most reliable airline on the MCI to IAD route with a 88% on-time rate, compared to Republic Airways at 86%. Based on 72 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MCI to IAD
Kansas City to Washington — airline reliability comparison
On-Time Rate by Airline
United Airlines88%
Republic Airways86%
MCI to IAD Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 88% | 1.1% | 150m | 72 |
| Republic AirwaysYXWorst | 86% | 4.3% | 84m | 72 |
Route Overview
86%
Overall On-Time
147m
Avg Delay
3.5%
Cancel Rate
144
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.