San Antonio (SAT) to Baltimore (BWI) flights
Southwest Airlines flies nonstop from San Antonio International Airport to Baltimore/Washington International Thurgood Marshall Airport, with about 17 flights a week in July 2026. The 1,407-mile flight takes about 3h 11m gate to gate.
- Distance
- 1,407 mi · 2,264 km
- Flight time
- 3h 11m
- Airlines
- 1
- Seats filled
- 70%
Airlines flying SAT to BWI
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 17 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 84,020 | 3h 11m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SAT to BWI flight schedule
6 flight numbers flew this route in August 2026. The first usually leaves at 5:00am and the last at 2:55pm. 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) |
|---|---|---|---|---|
| WN 174Southwest Airlines | 5:00am | 9:20am | 4 | n/a |
| WN 547Southwest Airlines | 6:00am | 10:20am | 4 | n/a |
| WN 1059Southwest Airlines | 6:30am | 10:50am | 8 | n/a |
| WN 4808Southwest Airlines | 11:50am | 4:10pm | 16 | 75% |
| WN 686Southwest Airlines | 2:35pm | 6:55pm | 8 | n/a |
| WN 389Southwest Airlines | 2:55pm | 7:15pm | 12 | 70% |
Is SAT to BWI on time?
From September 2025 to August 2026, 80% of 719 flights arrived within 15 minutes of schedule and 1.5% were cancelled. Flights leaving around 5am were the most punctual (93%), those around 5pm the least (48%). Most delay time was caused by late-arriving aircraft (44%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 719 | 80% | 12 min | 1.5% |
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 |
|---|---|---|---|
| 5am to 6am | 326 | 93% | |
| 11am to 12pm | 81 | 79% | |
| 2pm to 3pm | 25 | 57% | |
| 3pm to 4pm | 134 | 73% | |
| 4pm to 5pm | 49 | 59% | |
| 5pm to 6pm | 63 | 48% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 69 | 7,423 | |
| September 2025 | 69 | 7,375 | |
| October 2025 | 74 | 9,189 | |
| November 2025 | 61 | 6,751 | |
| December 2025 | 70 | 8,392 | |
| January 2026 | 37 | 3,761 | |
| February 2026 | 32 | 2,984 | |
| March 2026 | 50 | 5,771 | |
| April 2026 | 51 | 5,736 | |
| May 2026 | 52 | 6,917 | |
| June 2026 | 75 | 10,321 | |
| July 2026 | 77 | 9,400 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.