Atlanta (ATL) to San Antonio (SAT) flights
Delta Air Lines, Southwest Airlines fly nonstop from Hartsfield Jackson Atlanta International Airport to San Antonio International Airport, with about 56 flights a week in July 2026. The 874-mile flight takes about 2h 26m gate to gate.
- Distance
- 874 mi · 1,407 km
- Flight time
- 2h 26m
- Airlines
- 2
- Seats filled
- 82%
Airlines flying ATL to SAT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 51 | Airbus A321, Airbus A320-100/200, Airbus A319 | 374,918 | 2h 26m |
| Southwest Airlines | 4 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 32,426 | 2h 26m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A320neo, Airbus A321 | 12,216 | 2h 35m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ATL to SAT flight schedule
10 flight numbers flew this route in August 2026, 7 of them almost daily. The first usually leaves at 8:25am and the last at 11:00pm. 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) |
|---|---|---|---|---|
| DL 1676Delta Air Lines | 8:25am | 9:48am | 31 | 91% |
| DL 1121Delta Air Lines | 9:45am | 11:10am | 27 | 84% |
| DL 1408Delta Air Lines | 12:15pm | 1:38pm | 31 | 86% |
| WN 3174Southwest Airlines | 12:50pm | 2:15pm | 12 | 92% |
| DL 2009Delta Air Lines | 3:10pm | 4:39pm | 31 | 81% |
| WN 2653Southwest Airlines | 3:15pm | 4:40pm | 4 | n/a |
| DL 1465Delta Air Lines | 5:16pm | 6:46pm | 31 | 78% |
| DL 2893Delta Air Lines | 7:35pm | 9:04pm | 31 | 74% |
| DL 1222Delta Air Lines | 9:15pm | 10:43pm | 5 | 73% |
| DL 1508Delta Air Lines | 11:00pm | 12:28am | 27 | 79% |
Is ATL to SAT on time?
From September 2025 to August 2026, 81% of 2,962 flights arrived within 15 minutes of schedule and 1.7% were cancelled. Flights leaving around 8am were the most punctual (89%), those around 6pm the least (71%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (46%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 2,596 | 81% | 11 min | 1.8% |
| Southwest Airlines | 292 | 82% | 9 min | 0.3% |
| Frontier Airlines | 74 | 76% | 27 min | 0% |
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 |
|---|---|---|---|
| 8am to 9am | 336 | 89% | |
| 9am to 10am | 264 | 84% | |
| 11am to 12pm | 184 | 87% | |
| 12pm to 1pm | 191 | 84% | |
| 1pm to 2pm | 303 | 81% | |
| 2pm to 3pm | 217 | 83% | |
| 3pm to 4pm | 353 | 77% | |
| 4pm to 5pm | 126 | 83% | |
| 6pm to 7pm | 211 | 71% | |
| 7pm to 8pm | 145 | 78% | |
| 8pm to 9pm | 139 | 75% | |
| 10pm to 11pm | 162 | 79% | |
| 11pm to 12am | 175 | 79% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 270 | 37,347 | |
| September 2025 | 260 | 37,030 | |
| October 2025 | 277 | 39,793 | |
| November 2025 | 246 | 33,668 | |
| December 2025 | 244 | 36,318 | |
| January 2026 | 209 | 28,825 | |
| February 2026 | 218 | 30,016 | |
| March 2026 | 254 | 35,798 | |
| April 2026 | 247 | 33,398 | |
| May 2026 | 247 | 36,358 | |
| June 2026 | 241 | 36,686 | |
| July 2026 | 248 | 35,449 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.