Houston (HOU) to San Antonio (SAT) flights
Southwest Airlines flies nonstop from William P. Hobby Airport to San Antonio International Airport, with about 21 flights a week in July 2026. The 192-mile flight takes about 55m gate to gate.
- Distance
- 192 mi · 309 km
- Flight time
- 55m
- Airlines
- 1
- Seats filled
- 68%
Airlines flying HOU to SAT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 21 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 141,180 | 55m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
HOU to SAT flight schedule
10 flight numbers flew this route in August 2026. The first usually leaves at 8:10am and the last at 9:55pm. 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 3733Southwest Airlines | 8:10am | 9:10am | 4 | n/a |
| WN 1346Southwest Airlines | 8:30am | 9:30am | 4 | n/a |
| WN 165Southwest Airlines | 10:05am | 11:10am | 12 | 100% |
| WN 813Southwest Airlines | 11:20am | 12:20pm | 8 | n/a |
| WN 2455Southwest Airlines | 1:45pm | 2:45pm | 12 | 67% |
| WN 4589Southwest Airlines | 2:40pm | 3:40pm | 12 | 75% |
| WN 1377Southwest Airlines | 4:05pm | 5:05pm | 4 | n/a |
| WN 3599Southwest Airlines | 8:40pm | 9:40pm | 12 | 83% |
| WN 1581Southwest Airlines | 8:55pm | 9:55pm | 12 | 75% |
| WN 287Southwest Airlines | 9:55pm | 10:55pm | 4 | n/a |
Is HOU to SAT on time?
From September 2025 to August 2026, 77% of 1,282 flights arrived within 15 minutes of schedule and 0.1% were cancelled. Flights leaving around 8am were the most punctual (95%), those around 10pm the least (62%). Most delay time was caused by late-arriving aircraft (54%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,282 | 77% | 13 min | 0.1% |
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 | 68 | 94% | |
| 8am to 9am | 113 | 95% | |
| 9am to 10am | 37 | 87% | |
| 10am to 11am | 202 | 84% | |
| 11am to 12pm | 98 | 87% | |
| 1pm to 2pm | 28 | 71% | |
| 2pm to 3pm | 170 | 64% | |
| 3pm to 4pm | 31 | 77% | |
| 4pm to 5pm | 64 | 86% | |
| 8pm to 9pm | 204 | 75% | |
| 9pm to 10pm | 61 | 56% | |
| 10pm to 11pm | 157 | 62% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 144 | 14,277 | |
| September 2025 | 141 | 14,613 | |
| October 2025 | 141 | 15,061 | |
| November 2025 | 120 | 10,414 | |
| December 2025 | 122 | 12,546 | |
| January 2026 | 98 | 9,896 | |
| February 2026 | 85 | 8,513 | |
| March 2026 | 101 | 11,151 | |
| April 2026 | 100 | 10,656 | |
| May 2026 | 105 | 12,472 | |
| June 2026 | 92 | 11,393 | |
| July 2026 | 91 | 10,188 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.