Denver International ⇄ San Antonio International DEN–SAT
Airlines flew 6,076 flights between Denver International DEN in Denver, CO and San Antonio International SAT in San Antonio, TX in the twelve months to July 2026, both directions together: 781,604 passengers in 1,008,596 seats, 77% of them filled, and 385,482 pounds of freight. 794 miles, about 103 minutes in the air, on 8 airlines: Southwest Airlines Co. (2,858), United Air Lines Inc. (2,396), Frontier Airlines Inc. (766), SkyWest Airlines Inc. (38) and 4 more. 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 | 452 |
| 2/25 | 394 |
| 3/25 | 532 |
| 4/25 | 474 |
| 5/25 | 538 |
| 6/25 | 531 |
| 7/25 | 553 |
| 8/25 | 473 |
| 9/25 | 442 |
| 10/25 | 505 |
| 11/25 | 485 |
| 12/25 | 564 |
| 1/26 | 451 |
| 2/26 | 384 |
| 3/26 | 595 |
| 4/26 | 503 |
| 5/26 | 536 |
| 6/26 | 559 |
| 7/26 | 579 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 55,709 |
| 2/25 | 48,328 |
| 3/25 | 65,794 |
| 4/25 | 57,330 |
| 5/25 | 66,163 |
| 6/25 | 69,566 |
| 7/25 | 73,231 |
| 8/25 | 59,340 |
| 9/25 | 58,390 |
| 10/25 | 67,151 |
| 11/25 | 59,248 |
| 12/25 | 70,425 |
| 1/26 | 56,633 |
| 2/26 | 53,395 |
| 3/26 | 76,076 |
| 4/26 | 62,252 |
| 5/26 | 70,205 |
| 6/26 | 74,669 |
| 7/26 | 73,820 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 2,858 | 339,046 | 74% | scheduled passenger service |
| United Air Lines Inc. UA | 2,396 | 313,991 | 82% | scheduled passenger service |
| Frontier Airlines Inc. F9 | 766 | 125,063 | 76% | scheduled passenger service |
| SkyWest Airlines Inc. OO | 38 | 2,226 | 79% | scheduled passenger service |
| Delta Air Lines Inc. DL | 11 | 301 | 38% | charter passenger service |
| American Airlines Inc. AA | 4 | 624 | 86% | scheduled passenger service |
| Sun Country Airlines d/b/a MN Airlines SY | 2 | 339 | 91% | charter passenger service |
| Eastern Air Express, LLC (EAX) 37Q | 1 | 14 | 9% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-800 | 1,818 | 170 | 242,417 |
| Boeing 737-700/700LR/Max 7 | 1,217 | 139 | 129,912 |
| Boeing B737 Max 800 | 1,085 | 173 | 138,565 |
| Airbus Industrie A320-100/200 | 711 | 151 | 91,950 |
| Airbus Industrie A320-200n | 286 | 186 | 42,438 |
| Airbus Industrie A321-200n | 273 | 238 | 47,206 |
| Airbus Industrie A319 | 199 | 126 | 21,337 |
| Airbus Industrie A321Neoxlr | 188 | 230 | 32,762 |
| Boeing 737-900ER | 162 | 179 | 21,505 |
| Boeing B737 Max 900 | 88 | 179 | 10,985 |
| Embraer ERJ-175 | 37 | 75 | 2,226 |
| Boeing 757-200 | 11 | 72 | 301 |
| Canadair RJ-200ER /RJ-440 | 1 | 50 | 0 |
DEN → SAT this direction alone · flown January 2025 to July 2026
3,047 flights of 3,046 scheduled, 392,415 passengers in 508,576 seats, 226,331 pounds of freight, 491 pounds of mail. Southwest Airlines Co. 1,430; United Air Lines Inc. 1,202; Frontier Airlines Inc. 384; SkyWest Airlines Inc. 19; Delta Air Lines Inc. 7; American Airlines Inc. 4; Sun Country Airlines d/b/a MN Airlines 1.
SAT → DEN this direction alone · flown January 2025 to July 2026
3,029 flights of 3,040 scheduled, 389,189 passengers in 500,020 seats, 159,151 pounds of freight. Southwest Airlines Co. 1,428; United Air Lines Inc. 1,194; Frontier Airlines Inc. 382; SkyWest Airlines Inc. 19; Delta Air Lines Inc. 4; Eastern Air Express, LLC (EAX) 1; Sun Country Airlines d/b/a MN Airlines 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: Denver International DEN and San Antonio International SAT; all routes.