Route · SLC → SAT · 2020–2025 BTS data
Salt Lake City to San Antonio
The SLC–SAT corridor (Salt Lake City, UT → San Antonio, TX) runs ahead of the national average, served by 4 carriers across roughly 1,087 miles.
Data updated 2026-06-13
- 84.1%
- On-time
- +5.1 pts
- vs US avg
- 66 min
- Delay when late
- 5,968
- Flights
Cancelled
0.7%
Best Month
Oct 2025 93%
Worst Month
Jul 2024 68%
Distance
1,087 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 87 | 12 | 3 | 0 | DL |
| Nov 2025 | 78 | 13 | 1 | 0 | DL |
| Oct 2025 | 84 | 6 | 0 | 0 | DL |
| Sep 2025 | 77 | 12 | 1 | 0 | DL |
| Aug 2025 | 82 | 11 | 0 | 0 | DL |
| Jul 2025 | 88 | 24 | 0 | 0 | DL |
| Jun 2025 | 86 | 13 | 1 | 2 | OO,DL |
| May 2025 | 87 | 13 | 0 | 0 | DL |
| Apr 2025 | 86 | 21 | 0 | 0 | DL |
| Mar 2025 | 88 | 10 | 0 | 0 | DL |
| Feb 2025 | 74 | 13 | 0 | 0 | DL |
| Jan 2025 | 82 | 15 | 2 | 0 | DL |
| Dec 2024 | 88 | 22 | 0 | 0 | DL |
| Nov 2024 | 78 | 11 | 0 | 1 | DL |
| Oct 2024 | 83 | 9 | 0 | 1 | DL |
| Sep 2024 | 80 | 9 | 0 | 0 | DL |
| Aug 2024 | 92 | 18 | 1 | 0 | DL |
| Jul 2024 | 91 | 29 | 5 | 0 | DL |
| Jun 2024 | 89 | 18 | 0 | 0 | DL |
| May 2024 | 88 | 19 | 0 | 0 | DL |
| Apr 2024 | 87 | 12 | 0 | 0 | DL |
| Mar 2024 | 88 | 18 | 0 | 1 | DL |
| Feb 2024 | 78 | 14 | 0 | 1 | DL |
| Jan 2024 | 87 | 15 | 0 | 0 | DL |
Cancellation Rate
0.7%
14 of 2,028 flights
Diversion Rate
0.3%
6 of 2,028 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 →SAT - San Antonio
Full on-time, delay-cause, and seasonal performance for San Antonio, TX.
Destination airport →Compare the two airports
See SLC and SAT 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–SAT.
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What the Data Says About SLC to SAT
Bureau of Transportation Statistics records show Salt Lake City to San Antonio (SLC to SAT) running a 84.1% on-time rate over 5,968 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 65.6 minutes. The 1,087-mile corridor is served by 4 carriers, and over the last 24 months 0.7% of 2,028 flights were cancelled, 0.3% diverted.
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 93% on-time, while Jul 2024 came in at just 68% - a 25-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SLC to SAT? ▼
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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.