Route · DCA → SLC · 2020–2025 BTS data
Washington to Salt Lake City
The DCA–SLC corridor (Washington, DC → Salt Lake City, UT) runs ahead of the national average, served by 1 carrier across roughly 1,851 miles.
Data updated 2026-06-13
- 80.9%
- On-time
- +1.9 pts
- vs US avg
- 103 min
- Delay when late
- 1,807
- Flights
Cancelled
0.8%
Best Month
N/A
Worst Month
N/A
Distance
1,851 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 6 | 0 | 0 | DL |
| Nov 2025 | 30 | 3 | 0 | 0 | DL |
| Oct 2025 | 31 | 7 | 0 | 0 | DL |
| Sep 2025 | 30 | 7 | 0 | 0 | DL |
| Aug 2025 | 31 | 5 | 0 | 0 | DL |
| Jul 2025 | 31 | 13 | 0 | 0 | DL |
| Jun 2025 | 30 | 11 | 1 | 0 | DL |
| May 2025 | 31 | 7 | 1 | 0 | DL |
| Apr 2025 | 30 | 4 | 0 | 0 | DL |
| Mar 2025 | 31 | 10 | 1 | 0 | DL |
| Jan 2025 | 31 | 3 | 0 | 0 | DL |
| Dec 2024 | 31 | 7 | 0 | 1 | DL |
| Nov 2024 | 30 | 3 | 0 | 0 | DL |
| Oct 2024 | 31 | 1 | 0 | 0 | DL |
| Sep 2024 | 30 | 2 | 0 | 0 | DL |
| Aug 2024 | 31 | 4 | 0 | 1 | DL |
| Jul 2024 | 31 | 7 | 3 | 0 | DL |
| Jun 2024 | 30 | 5 | 0 | 0 | DL |
| May 2024 | 31 | 10 | 0 | 0 | DL |
| Apr 2024 | 30 | 7 | 0 | 0 | DL |
| Mar 2024 | 31 | 4 | 0 | 0 | DL |
| Jan 2024 | 31 | 9 | 0 | 0 | DL |
| Dec 2023 | 31 | 2 | 0 | 0 | DL |
| Nov 2023 | 30 | 0 | 0 | 0 | DL |
Cancellation Rate
0.8%
6 of 735 flights
Diversion Rate
0.3%
2 of 735 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Origin airport →SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Destination airport →Compare the two airports
See DCA and SLC side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to DCA–SLC.
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What the Data Says About DCA to SLC
1,807 tracked flights put the DCA to SLC pairing (Washington to Salt Lake City) at a 80.9% on-time rate, squarely in line with the wider network. Delays that do occur run 103.2 minutes on average. Across the 1,851-mile route and its 1 carrier, the trailing 24 months show 0.8% cancelled and 0.3% diverted (735 flights sampled).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
Frequently Asked Questions
How often are flights delayed from DCA to SLC? ▼
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.