Delta Air Lines is the most reliable airline on the DCA to SLC route with a 80% on-time rate. Based on 1,307 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: DCA to SLC
Washington to Salt Lake City — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines80%
DCA to SLC Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 80% | 1.1% | 71m | 1,307 |
Route Overview
80%
Overall On-Time
71m
Avg Delay
1.1%
Cancel Rate
1,307
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.