Delta Air Lines is the most reliable airline on the SLC to DCA route with a 85% on-time rate. Based on 1,307 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SLC to DCA
Salt Lake City to Washington — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines85%
SLC to DCA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 85% | 1.0% | 48m | 1,307 |
Route Overview
86%
Overall On-Time
48m
Avg Delay
1%
Cancel Rate
1,307
Total Flights
Flying out of SLC? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.