St. Louis Lambert International ⇄ San Antonio International STL–SAT
Airlines flew 1,094 flights between St. Louis Lambert International STL in St Louis, MO and San Antonio International SAT in San Antonio, TX in the twelve months to July 2026, both directions together: 125,995 passengers in 176,685 seats, 71% of them filled, and 80,169 pounds of freight. 786 miles, about 111 minutes in the air, on 2 airlines: Southwest Airlines Co. (1,093), American Airlines Inc. (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 | 59 |
| 2/25 | 71 |
| 3/25 | 108 |
| 4/25 | 112 |
| 5/25 | 111 |
| 6/25 | 105 |
| 7/25 | 108 |
| 8/25 | 93 |
| 9/25 | 94 |
| 10/25 | 105 |
| 11/25 | 67 |
| 12/25 | 80 |
| 1/26 | 58 |
| 2/26 | 53 |
| 3/26 | 110 |
| 4/26 | 112 |
| 5/26 | 110 |
| 6/26 | 104 |
| 7/26 | 108 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 6,101 |
| 2/25 | 7,464 |
| 3/25 | 11,901 |
| 4/25 | 12,468 |
| 5/25 | 13,409 |
| 6/25 | 12,120 |
| 7/25 | 11,933 |
| 8/25 | 10,593 |
| 9/25 | 11,285 |
| 10/25 | 12,690 |
| 11/25 | 8,439 |
| 12/25 | 9,478 |
| 1/26 | 5,702 |
| 2/26 | 6,127 |
| 3/26 | 12,780 |
| 4/26 | 11,411 |
| 5/26 | 12,635 |
| 6/26 | 12,651 |
| 7/26 | 12,204 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 1,093 | 125,902 | 71% | scheduled passenger service |
| American Airlines Inc. AA | 1 | 93 | 73% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-700/700LR/Max 7 | 414 | 139 | 42,927 |
| Boeing B737 Max 800 | 377 | 175 | 45,035 |
| Boeing 737-800 | 302 | 175 | 37,940 |
| Airbus Industrie A319 | 1 | 128 | 93 |
STL → SAT this direction alone · flown January 2025 to July 2026
544 flights of 548 scheduled, 58,831 passengers in 87,578 seats, 60,363 pounds of freight. Southwest Airlines Co. 544.
SAT → STL this direction alone · flown January 2025 to July 2026
550 flights of 549 scheduled, 67,164 passengers in 89,107 seats, 19,806 pounds of freight. Southwest Airlines Co. 549; American Airlines Inc. 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: St. Louis Lambert International STL and San Antonio International SAT; all routes.