Boston (BOS) to San Antonio (SAT) flights
Delta Air Lines flies nonstop from Boston Logan International Airport to San Antonio International Airport, with about 7 flights a week in July 2026. The 1,764-mile flight takes about 4h 36m gate to gate.
- Distance
- 1,764 mi · 2,839 km
- Flight time
- 4h 36m
- Airlines
- 1
- Seats filled
- 78%
Airlines flying BOS to SAT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 7 | Airbus A220-300, Airbus A319, Airbus A220-100 | 34,445 | 4h 36m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BOS to SAT flight schedule
1 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 9:01am and the last at 9:01am. 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 816Delta Air Lines | 9:01am | 12:25pm | 31 | 66% |
Is BOS to SAT on time?
From September 2025 to August 2026, 76% of 357 flights arrived within 15 minutes of schedule and 2.2% were cancelled. Flights leaving around 10am were the most punctual (88%), those around 9am the least (71%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (50%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 357 | 76% | 21 min | 2.2% |
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 |
|---|---|---|---|
| 7am to 8am | 14 | 86% | |
| 8am to 9am | 25 | 88% | |
| 9am to 10am | 209 | 71% | |
| 10am to 11am | 51 | 88% | |
| 11am to 12pm | 56 | 76% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 31 | 2,736 | |
| September 2025 | 30 | 2,550 | |
| October 2025 | 30 | 3,293 | |
| November 2025 | 27 | 2,605 | |
| December 2025 | 27 | 2,520 | |
| January 2026 | 28 | 2,178 | |
| February 2026 | 27 | 2,429 | |
| March 2026 | 31 | 3,258 | |
| April 2026 | 29 | 3,095 | |
| May 2026 | 30 | 3,099 | |
| June 2026 | 30 | 3,311 | |
| July 2026 | 31 | 3,648 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.