Route · DEN → SAT · 2020–2025 BTS data
Denver to San Antonio
The DEN–SAT corridor (Denver, CO → San Antonio, TX) runs behind the national average, served by 19 carriers across roughly 794 miles.
Data updated 2026-06-13
- 78.2%
- On-time
- -0.8 pts
- vs US avg
- 62 min
- Delay when late
- 16,430
- Flights
Cancelled
0.7%
Best Month
Dec 2024 90%
Worst Month
Jul 2025 58%
Distance
794 mi
Carriers
19
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 282 | 67 | 1 | 0 | WN,F9,UA,OO |
| Nov 2025 | 243 | 30 | 1 | 0 | UA,F9,WN |
| Oct 2025 | 252 | 42 | 0 | 0 | UA,WN,F9 |
| Sep 2025 | 220 | 40 | 0 | 0 | UA,WN,F9 |
| Aug 2025 | 239 | 58 | 2 | 2 | WN,F9,UA |
| Jul 2025 | 278 | 118 | 0 | 0 | UA,WN,F9 |
| Jun 2025 | 267 | 101 | 1 | 4 | UA,WN,F9 |
| May 2025 | 273 | 70 | 4 | 1 | OO,UA,WN,F9 |
| Apr 2025 | 236 | 62 | 0 | 0 | F9,UA,WN |
| Mar 2025 | 268 | 40 | 0 | 1 | UA,WN,F9 |
| Feb 2025 | 198 | 35 | 0 | 1 | UA,WN,F9 |
| Jan 2025 | 226 | 63 | 3 | 0 | UA,WN,F9 |
| Dec 2024 | 264 | 27 | 0 | 0 | F9,UA,WN |
| Nov 2024 | 264 | 52 | 0 | 0 | UA,WN,F9 |
| Oct 2024 | 276 | 35 | 0 | 0 | UA,WN,F9 |
| Sep 2024 | 257 | 34 | 0 | 0 | WN,UA,F9 |
| Aug 2024 | 272 | 82 | 3 | 0 | F9,WN,UA |
| Jul 2024 | 302 | 83 | 3 | 3 | F9,UA,WN |
| Jun 2024 | 291 | 76 | 3 | 0 | F9,UA,WN |
| May 2024 | 276 | 68 | 2 | 0 | F9,UA,WN |
| Apr 2024 | 269 | 60 | 0 | 1 | F9,UA,WN |
| Mar 2024 | 273 | 64 | 4 | 1 | F9,UA,WN |
| Feb 2024 | 229 | 49 | 0 | 1 | F9,UA,WN |
| Jan 2024 | 251 | 59 | 16 | 0 | F9,WN,UA |
Cancellation Rate
0.7%
43 of 6,206 flights
Diversion Rate
0.2%
15 of 6,206 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Origin airport →SAT - San Antonio
Full on-time, delay-cause, and seasonal performance for San Antonio, TX.
Destination airport →Compare the two airports
See DEN 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 DEN–SAT.
Routes with a similar on-time rate
What the Data Says About DEN to SAT
The Denver to San Antonio corridor (DEN to SAT) posts a 78.2% on-time rate on the lower edge of the average band, based on 16,430 tracked flights. Late flights run 62.1 minutes behind on average. 19 carriers cover the 794-mile route; over the last 24 months, 43 of 6,206 flights were cancelled (0.7%) and 0.2% diverted.
The monthly split is wide on this route: Dec 2024 posted the strongest performance at 90% on-time, while Jul 2025 came in at just 58% - a 32-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from DEN to SAT? ▼
What is the cancellation rate for DEN to SAT? ▼
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Flight Guides
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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.