San Antonio International ⇄ Baltimore/Washington International Thurgood Marshall SAT–BWI
Airlines flew 1,440 flights between San Antonio International SAT in San Antonio, TX and Baltimore/Washington International Thurgood Marshall BWI in Baltimore, MD in the twelve months to July 2026, both directions together: 174,373 passengers in 243,940 seats, 71% of them filled, and 199,344 pounds of freight. 1,407 miles, about 175 minutes in the air, on 3 airlines: Southwest Airlines Co. (1,438), American Airlines Inc. (1), Spirit Air Lines (1). Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 115 |
| 2/25 | 118 |
| 3/25 | 122 |
| 4/25 | 114 |
| 5/25 | 126 |
| 6/25 | 171 |
| 7/25 | 166 |
| 8/25 | 139 |
| 9/25 | 139 |
| 10/25 | 150 |
| 11/25 | 121 |
| 12/25 | 140 |
| 1/26 | 74 |
| 2/26 | 64 |
| 3/26 | 102 |
| 4/26 | 103 |
| 5/26 | 104 |
| 6/26 | 150 |
| 7/26 | 154 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 12,882 |
| 2/25 | 12,427 |
| 3/25 | 14,991 |
| 4/25 | 14,641 |
| 5/25 | 17,052 |
| 6/25 | 21,598 |
| 7/25 | 20,214 |
| 8/25 | 16,235 |
| 9/25 | 16,098 |
| 10/25 | 18,940 |
| 11/25 | 13,838 |
| 12/25 | 17,374 |
| 1/26 | 7,832 |
| 2/26 | 6,369 |
| 3/26 | 12,488 |
| 4/26 | 12,016 |
| 5/26 | 13,947 |
| 6/26 | 20,308 |
| 7/26 | 18,928 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 1,438 | 174,075 | 71% | scheduled passenger service |
| American Airlines Inc. AA | 1 | 135 | 78% | scheduled passenger service |
| Spirit Air Lines NK | 1 | 163 | 93% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing B737 Max 800 | 730 | 175 | 90,240 |
| Boeing 737-800 | 472 | 175 | 58,150 |
| Boeing 737-700/700LR/Max 7 | 237 | 141 | 25,820 |
| Airbus Industrie A320-100/200 | 1 | 176 | 163 |
SAT → BWI this direction alone · flown January 2025 to July 2026
717 flights of 732 scheduled, 84,020 passengers in 119,913 seats, 73,518 pounds of freight. Southwest Airlines Co. 717.
BWI → SAT this direction alone · flown January 2025 to July 2026
723 flights of 734 scheduled, 90,353 passengers in 124,027 seats, 125,826 pounds of freight. Southwest Airlines Co. 721; American Airlines Inc. 1; Spirit Air Lines 1.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: San Antonio International SAT and Baltimore/Washington International Thurgood Marshall BWI; all routes.