Chicago (ORD) to San Antonio (SAT) flights
United Airlines, American Airlines, Envoy Air fly nonstop from Chicago O'Hare International Airport to San Antonio International Airport, with about 40 flights a week in July 2026. The 1,041-mile flight takes about 2h 57m gate to gate.
- Distance
- 1,041 mi · 1,675 km
- Flight time
- 2h 57m
- Airlines
- 3
- Seats filled
- 81%
Airlines flying ORD to SAT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 20 | Airbus A320-100/200, Airbus A319, Boeing 737-700 / MAX 7 | 98,845 | 2h 58m |
| American Airlines | 13 | Airbus A319, Airbus A320-100/200, Boeing 737-800 | 53,744 | 2h 47m |
| Envoy Air | 7 | Embraer E175, Embraer E170 | 25,315 | 3h 2m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175 | 7,478 | 3h 10m |
| Republic AirlineSeasonal or ended | n/a | Embraer E175 | 6,696 | 2h 57m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ORD to SAT flight schedule
6 flight numbers flew this route in August 2026, 6 of them almost daily. The first usually leaves at 8:45am and the last at 10:00pm. 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) |
|---|---|---|---|---|
| UA 490United Airlines | 8:45am | 11:52am | 31 | 83% |
| AA 488American Airlines | 10:05am | 12:53pm | 27 | 56% |
| UA 2844United Airlines | 1:30pm | 4:31pm | 29 | 76% |
| AA 4176American Airlines · operated by Envoy Air | 2:58pm | 5:55pm | 27 | 75% |
| UA 1394United Airlines | 7:50pm | 10:50pm | 31 | 53% |
| AA 431American Airlines | 10:00pm | 12:48am | 31 | 47% |
Is ORD to SAT on time?
From September 2025 to August 2026, 73% of 2,001 flights arrived within 15 minutes of schedule and 1.7% were cancelled. Flights leaving around 9am were the most punctual (82%), those around 7pm the least (64%). Most delay time was caused by late-arriving aircraft (51%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 1,008 | 71% | 23 min | 2.3% |
| United Airlines | 993 | 75% | 19 min | 1.2% |
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 | 87 | 87% | |
| 9am to 10am | 490 | 82% | |
| 10am to 11am | 101 | 67% | |
| 1pm to 2pm | 355 | 77% | |
| 2pm to 3pm | 223 | 75% | |
| 6pm to 7pm | 62 | 72% | |
| 7pm to 8pm | 275 | 64% | |
| 8pm to 9pm | 257 | 70% | |
| 9pm to 10pm | 84 | 38% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 150 | 16,074 | |
| September 2025 | 150 | 15,107 | |
| October 2025 | 179 | 19,971 | |
| November 2025 | 153 | 15,302 | |
| December 2025 | 158 | 15,367 | |
| January 2026 | 139 | 12,130 | |
| February 2026 | 143 | 12,183 | |
| March 2026 | 176 | 15,423 | |
| April 2026 | 171 | 15,777 | |
| May 2026 | 179 | 17,155 | |
| June 2026 | 169 | 19,019 | |
| July 2026 | 175 | 18,754 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.