Newark (EWR) to San Antonio (SAT) flights
United Airlines flies nonstop from Newark Liberty International Airport to San Antonio International Airport, with about 12 flights a week in July 2026. The 1,569-mile flight takes about 4h 4m gate to gate.
- Distance
- 1,569 mi · 2,525 km
- Flight time
- 4h 4m
- Airlines
- 1
- Seats filled
- 80%
Airlines flying EWR to SAT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 12 | Airbus A319, Boeing 737 MAX 9, Boeing 737-900ER | 68,688 | 4h 4m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
EWR to SAT flight schedule
2 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:40am and the last at 11:59am. 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 591United Airlines | 8:40am | 11:51am | 21 | 88% |
| UA 515United Airlines | 11:59am | 3:10pm | 31 | 87% |
Is EWR to SAT on time?
From September 2025 to August 2026, 87% of 596 flights arrived within 15 minutes of schedule and 1.2% were cancelled. Flights leaving around 7am were the most punctual (94%), those around 9am the least (76%). Most delay time was caused by air traffic control and airport congestion (38%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 596 | 87% | 7 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 |
|---|---|---|---|
| 6am to 7am | 34 | 85% | |
| 7am to 8am | 69 | 94% | |
| 8am to 9am | 73 | 92% | |
| 9am to 10am | 58 | 76% | |
| 11am to 12pm | 212 | 87% | |
| 12pm to 1pm | 150 | 87% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 31 | 3,742 | |
| September 2025 | 34 | 4,457 | |
| October 2025 | 55 | 6,249 | |
| November 2025 | 57 | 7,527 | |
| December 2025 | 58 | 8,050 | |
| January 2026 | 34 | 4,059 | |
| February 2026 | 35 | 3,770 | |
| March 2026 | 54 | 6,874 | |
| April 2026 | 52 | 6,304 | |
| May 2026 | 55 | 6,017 | |
| June 2026 | 53 | 6,115 | |
| July 2026 | 52 | 5,857 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.