Airports › San Antonio (SAT) › April 2025
Airport month · April 2025
San Antonio International in April 2025
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In April 2025, reporting carriers scheduled 3,536 domestic departures from San Antonio International (SAT). 81.1% left less than 15 minutes late and 81.1% reached their destination on time; 1.2% were cancelled.
Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so SAT departures were 0.5 points above the national departure figure.
A year earlier, in April 2024, the airport had 3,401 departures with 80.5% leaving on time: a change of +0.6 points, with flights up 4%.
Flights arriving at SAT that month were on time 77.4% of the time (3,540 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 35% and national aviation system 17%.
- On time 81.1%
- Arrived 15+ minutes late 17.4%
- Cancelled 1.2%
- Diverted 0.3%
April 2025 against a year earlier, the airport's year and the nation
| Measure | Apr 2025 | Apr 2024 | SAT, 12 months to Jul 2026 | All reported flights, Apr 2025 |
|---|---|---|---|---|
| Departed on time | 81.1% | 80.5% | 80.3% | 80.6% |
| Arrived on time | 81.1% | 81.7% | 80.6% | 79.5% |
| Cancelled | 1.2% | 0.5% | 1.2% | 0.8% |
| Average departure delay (late minutes only) | 14.3 min | 16.0 min | 14.7 min | 14.1 min |
| Scheduled departures a day | 118 | 113 | 110 | 19,465 |
| Scheduled departures | 3,536 | 3,401 | 40,226 | 583,950 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 1,394 | 39% | 81.7% | 2.7 min | 1.1% |
| AA American Airlines | 661 | 19% | 75.5% | 17.5 min | 2.4% |
| DL Delta Air Lines | 560 | 16% | 83.2% | 3.4 min | 0.5% |
| UA United Airlines | 373 | 11% | 86.6% | 1.5 min | 0.0% |
| NK Spirit Airlines | 174 | 5% | 86.8% | -2.7 min | 0.0% |
| OO SkyWest Airlines | 155 | 4% | 81.9% | -0.3 min | 0.6% |
| MQ Envoy Air | 112 | 3% | 70.5% | 5.4 min | 6.3% |
| AS Alaska Airlines | 59 | 2% | 76.3% | 12.0 min | 0.0% |
| F9 Frontier Airlines | 48 | 1% | 81.3% | 5.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| SAT–DFW | San Antonio to Dallas/Fort Worth | 377 | 65.8% | 25.9 min | 5.3% |
| SAT–ATL | San Antonio to Atlanta | 269 | 79.2% | 4.7 min | 1.1% |
| SAT–DAL | San Antonio to Dallas | 253 | 81.0% | 2.3 min | 3.6% |
| SAT–PHX | San Antonio to Phoenix | 243 | 83.5% | 2.8 min | 0.8% |
| SAT–DEN | San Antonio to Denver | 236 | 76.7% | 11.6 min | 0.0% |
| SAT–LAS | San Antonio to Las Vegas | 196 | 83.2% | 0.9 min | 0.0% |
| SAT–LAX | San Antonio to Los Angeles | 179 | 86.0% | -1.5 min | 0.0% |
| SAT–ORD | San Antonio to Chicago | 169 | 76.3% | 11.3 min | 0.6% |
| SAT–IAH | San Antonio to Houston | 142 | 86.6% | 1.8 min | 0.0% |
| SAT–HOU | San Antonio to Houston | 128 | 73.4% | 5.5 min | 1.6% |
| SAT–CLT | San Antonio to Charlotte | 120 | 85.8% | 11.3 min | 0.0% |
| SAT–MCO | San Antonio to Orlando | 94 | 88.3% | -1.4 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left SAT on time in April 2025?
81.1% of 3,536 scheduled domestic departures left less than 15 minutes late, and 81.1% reached their destination on time. The national figures that month were 80.6% and 79.5%.
How does that compare with a year earlier?
In April 2024, 80.5% of 3,401 departures left on time and 0.5% were cancelled, against 81.1% and 1.2% in April 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SAT · methodology · corrections.