San Antonio (SAT) to Boston (BOS) flights
Delta Air Lines flies nonstop from San Antonio International Airport to Boston Logan International Airport, with about 7 flights a week in July 2026. The 1,764-mile flight takes about 4h 9m gate to gate.
- Distance
- 1,764 mi · 2,839 km
- Flight time
- 4h 9m
- Airlines
- 1
- Seats filled
- 81%
Airlines flying SAT to BOS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 7 | Airbus A220-300, Airbus A319, Airbus A220-100 | 34,928 | 4h 9m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SAT to BOS flight schedule
1 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 1:20pm and the last at 1:20pm. 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 | 1:20pm | 6:47pm | 31 | 58% |
Is SAT to BOS on time?
From September 2025 to August 2026, 60% of 357 flights arrived within 15 minutes of schedule and 2.2% were cancelled. Flights leaving around 12pm were the most punctual (71%), those around 2pm the least (51%). Most delay time was caused by late-arriving aircraft (43%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 357 | 60% | 35 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 |
|---|---|---|---|
| 12pm to 1pm | 100 | 71% | |
| 1pm to 2pm | 164 | 56% | |
| 2pm to 3pm | 79 | 51% | |
| 3pm to 4pm | 11 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 28 | 2,401 | |
| September 2025 | 30 | 2,472 | |
| October 2025 | 30 | 3,194 | |
| November 2025 | 27 | 2,483 | |
| December 2025 | 27 | 2,417 | |
| January 2026 | 27 | 2,405 | |
| February 2026 | 27 | 2,468 | |
| March 2026 | 31 | 3,602 | |
| April 2026 | 29 | 3,167 | |
| May 2026 | 29 | 3,289 | |
| June 2026 | 28 | 3,276 | |
| July 2026 | 31 | 3,754 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.