United Airlines is the most reliable airline on the IAD to SMF route with a 79% on-time rate. Based on 1,146 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: IAD to SMF
Washington to Sacramento — airline reliability comparison
On-Time Rate by Airline
United Airlines79%
IAD to SMF Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 79% | 1.3% | 66m | 1,146 |
Route Overview
78%
Overall On-Time
67m
Avg Delay
1.4%
Cancel Rate
1,146
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.