San Diego (SAN) to San Antonio (SAT) flights
Southwest Airlines flies nonstop from San Diego International Airport to San Antonio International Airport, with about 14 flights a week in July 2026. The 1,129-mile flight takes about 2h 40m gate to gate.
- Distance
- 1,129 mi · 1,817 km
- Flight time
- 2h 40m
- Airlines
- 1
- Seats filled
- 72%
Airlines flying SAN to SAT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 14 | Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800 | 71,090 | 2h 40m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SAN to SAT flight schedule
4 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 7:10am and the last at 7:10pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| WN 179Southwest Airlines | 7:10am | 12:00pm | 4 | n/a |
| WN 3001Southwest Airlines | 10:10am | 2:55pm | 12 | 50% |
| WN 3911Southwest Airlines | 5:40pm | 10:25pm | 16 | 25% |
| WN 4594Southwest Airlines | 7:10pm | 11:55pm | 20 | 50% |
Is SAN to SAT on time?
From September 2025 to August 2026, 68% of 611 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 9am were the most punctual (88%), those around 8pm the least (23%). Most delay time was caused by late-arriving aircraft (77%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 611 | 68% | 18 min | 0.7% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 7am to 8am | 19 | 100% | |
| 8am to 9am | 126 | 83% | |
| 9am to 10am | 76 | 88% | |
| 10am to 11am | 54 | 83% | |
| 4pm to 5pm | 14 | 86% | |
| 5pm to 6pm | 57 | 58% | |
| 6pm to 7pm | 91 | 60% | |
| 7pm to 8pm | 112 | 51% | |
| 8pm to 9pm | 49 | 23% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 57 | 6,386 | |
| September 2025 | 56 | 5,902 | |
| October 2025 | 57 | 7,528 | |
| November 2025 | 55 | 6,682 | |
| December 2025 | 60 | 6,794 | |
| January 2026 | 19 | 2,102 | |
| February 2026 | 19 | 2,291 | |
| March 2026 | 52 | 6,562 | |
| April 2026 | 56 | 5,313 | |
| May 2026 | 63 | 7,004 | |
| June 2026 | 60 | 8,168 | |
| July 2026 | 61 | 7,525 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.