Route · SLC → DEN · 2020–2025 BTS data
Salt Lake City to Denver
The SLC–DEN corridor (Salt Lake City, UT → Denver, CO) runs behind the national average, served by 20 carriers across roughly 391 miles.
Data updated 2026-06-13
- 78.8%
- On-time
- -0.2 pts
- vs US avg
- 69 min
- Delay when late
- 43,051
- Flights
Cancelled
0.6%
Best Month
Oct 2024 87%
Worst Month
Jul 2025 64%
Distance
391 mi
Carriers
20
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 623 | 146 | 3 | 4 | DL,WN,F9,UA,OO |
| Nov 2025 | 589 | 91 | 14 | 0 | OO,UA,DL,F9,WN |
| Oct 2025 | 662 | 135 | 0 | 0 | OO,UA,WN,DL,F9 |
| Sep 2025 | 644 | 125 | 1 | 2 | UA,WN,OO,DL,F9 |
| Aug 2025 | 669 | 190 | 3 | 4 | OO,WN,F9,UA,DL |
| Jul 2025 | 688 | 247 | 7 | 4 | OO,UA,WN,DL,F9 |
| Jun 2025 | 664 | 225 | 2 | 6 | OO,UA,WN,DL,F9 |
| May 2025 | 644 | 209 | 1 | 2 | OO,UA,WN,DL,F9 |
| Apr 2025 | 635 | 174 | 2 | 1 | DL,F9,OO,UA,WN |
| Mar 2025 | 673 | 135 | 2 | 0 | OO,UA,WN,DL,F9 |
| Feb 2025 | 614 | 145 | 0 | 0 | DL,OO,UA,WN,F9 |
| Jan 2025 | 648 | 146 | 1 | 0 | DL,OO,UA,WN,F9 |
| Dec 2024 | 641 | 111 | 0 | 0 | DL,F9,OO,UA,WN |
| Nov 2024 | 600 | 117 | 7 | 0 | OO,UA,WN,DL,F9 |
| Oct 2024 | 661 | 83 | 0 | 0 | UA,OO,WN,DL,F9 |
| Sep 2024 | 648 | 83 | 1 | 0 | WN,OO,UA,DL,F9 |
| Aug 2024 | 695 | 191 | 6 | 6 | DL,F9,WN,OO,UA |
| Jul 2024 | 703 | 169 | 15 | 5 | DL,F9,OO,UA,WN |
| Jun 2024 | 686 | 173 | 5 | 2 | DL,F9,OO,UA,WN |
| May 2024 | 725 | 186 | 3 | 0 | DL,F9,OO,UA,WN |
| Apr 2024 | 705 | 157 | 1 | 0 | DL,F9,OO,UA,WN |
| Mar 2024 | 726 | 137 | 13 | 0 | DL,F9,OO,UA,WN |
| Feb 2024 | 637 | 135 | 3 | 1 | DL,F9,OO,UA,WN |
| Jan 2024 | 665 | 146 | 8 | 0 | DL,F9,WN,OO,UA |
Cancellation Rate
0.6%
98 of 15,845 flights
Diversion Rate
0.2%
37 of 15,845 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Origin airport →DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Destination airport →Compare the two airports
See SLC and DEN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–DEN.
Routes with a similar on-time rate
What the Data Says About SLC to DEN
43,051 tracked flights put the SLC to DEN pairing (Salt Lake City to Denver) at a 78.8% on-time rate, squarely in line with the wider network. Delays that do occur run 69.3 minutes on average. Across the 391-mile route and its 20 carriers, the trailing 24 months show 0.6% cancelled and 0.2% diverted (15,845 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 87% on-time, while Jul 2025 came in at just 64% - a 23-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.