Salt Lake City (SLC) to San Antonio (SAT) flights
Delta Air Lines flies nonstop from Salt Lake City International Airport to San Antonio International Airport, with about 20 flights a week in July 2026. The 1,087-mile flight takes about 2h 39m gate to gate.
- Distance
- 1,087 mi · 1,749 km
- Flight time
- 2h 39m
- Airlines
- 1
- Seats filled
- 79%
Airlines flying SLC to SAT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 20 | Airbus A220-100, Airbus A220-300, Airbus A319 | 91,678 | 2h 39m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SLC to SAT flight schedule
3 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 9:45am and the last at 8:40pm. 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 3123Delta Air Lines | 9:45am | 1:31pm | 31 | 84% |
| DL 2680Delta Air Lines | 1:25pm | 5:14pm | 25 | 84% |
| DL 2797Delta Air Lines | 8:40pm | 12:26am | 31 | 84% |
Is SLC to SAT on time?
From September 2025 to August 2026, 85% of 1,013 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 9am were the most punctual (86%), those around 5pm the least (84%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (68%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,013 | 85% | 10 min | 0.8% |
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 |
|---|---|---|---|
| 9am to 10am | 317 | 86% | |
| 10am to 11am | 46 | 78% | |
| 1pm to 2pm | 273 | 85% | |
| 5pm to 6pm | 56 | 84% | |
| 8pm to 9pm | 308 | 84% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 85 | 7,213 | |
| September 2025 | 76 | 6,310 | |
| October 2025 | 85 | 7,370 | |
| November 2025 | 77 | 6,217 | |
| December 2025 | 84 | 7,766 | |
| January 2026 | 86 | 7,740 | |
| February 2026 | 78 | 7,286 | |
| March 2026 | 90 | 9,079 | |
| April 2026 | 84 | 7,574 | |
| May 2026 | 90 | 8,569 | |
| June 2026 | 86 | 8,457 | |
| July 2026 | 90 | 8,970 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.