Salt Lake City International ⇄ Denver International SLC–DEN
Airlines flew 15,814 flights between Salt Lake City International SLC in Salt Lake City, UT and Denver International DEN in Denver, CO in the twelve months to July 2026, both directions together: 1,805,269 passengers in 2,283,872 seats, 79% of them filled, and 4,730,699 pounds of freight. 391 miles, about 60 minutes in the air, on 18 airlines: Southwest Airlines Co. (4,626), Delta Air Lines Inc. (3,429), SkyWest Airlines Inc. (2,935), United Air Lines Inc. (2,633) and 14 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 | 1,330 |
| 2/25 | 1,271 |
| 3/25 | 1,380 |
| 4/25 | 1,292 |
| 5/25 | 1,321 |
| 6/25 | 1,369 |
| 7/25 | 1,434 |
| 8/25 | 1,371 |
| 9/25 | 1,321 |
| 10/25 | 1,365 |
| 11/25 | 1,175 |
| 12/25 | 1,295 |
| 1/26 | 1,305 |
| 2/26 | 1,260 |
| 3/26 | 1,373 |
| 4/26 | 1,312 |
| 5/26 | 1,341 |
| 6/26 | 1,336 |
| 7/26 | 1,360 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 151,291 |
| 2/25 | 144,966 |
| 3/25 | 153,742 |
| 4/25 | 140,079 |
| 5/25 | 155,082 |
| 6/25 | 165,152 |
| 7/25 | 171,225 |
| 8/25 | 163,410 |
| 9/25 | 160,298 |
| 10/25 | 165,178 |
| 11/25 | 129,868 |
| 12/25 | 145,958 |
| 1/26 | 143,579 |
| 2/26 | 140,359 |
| 3/26 | 147,321 |
| 4/26 | 137,227 |
| 5/26 | 150,894 |
| 6/26 | 160,664 |
| 7/26 | 160,513 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 4,626 | 593,839 | 78% | scheduled passenger service |
| Delta Air Lines Inc. DL | 3,429 | 342,086 | 74% | charter passenger service, scheduled passenger service |
| SkyWest Airlines Inc. OO | 2,935 | 170,859 | 81% | scheduled passenger service |
| United Air Lines Inc. UA | 2,633 | 354,653 | 84% | charter passenger service, scheduled passenger service |
| Frontier Airlines Inc. F9 | 2,035 | 340,029 | 81% | scheduled passenger service |
| United Parcel Service 5X | 103 | 0 | scheduled cargo service | |
| Federal Express Corporation FX | 18 | 0 | scheduled cargo service | |
| Air Canada AC | 11 | 704 | 73% | charter passenger service, scheduled passenger service |
| American Airlines Inc. AA | 7 | 1,072 | 91% | scheduled passenger service |
| Sun Country Airlines d/b/a MN Airlines SY | 6 | 292 | 26% | charter passenger service, scheduled passenger service |
| Lufthansa German Airlines LH | 3 | 862 | 98% | scheduled passenger service |
| Alaska Airlines Inc. AS | 2 | 278 | 78% | scheduled passenger service |
| Compagnie Natl Air France AF | 1 | 252 | 90% | scheduled passenger service |
| JetBlue Airways B6 | 1 | 116 | 83% | scheduled passenger service |
| Turk Hava Yollari A.O. TK | 1 | 0 | 0% | scheduled passenger service |
| KaiserAir, Inc. 1EQ | 1 | 52 | 68% | charter passenger service |
| Aeromexico AM | 1 | 157 | 98% | scheduled passenger service |
| Global Crossing Airlines, Inc. GCA | 1 | 18 | 10% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-800 | 2,710 | 169 | 361,367 |
| Embraer ERJ-175 | 2,313 | 73 | 138,968 |
| Boeing B737 Max 800 | 2,219 | 174 | 305,052 |
| Boeing 737-700/700LR/Max 7 | 1,452 | 140 | 163,423 |
| A200-100 BD-500-1A10 | 1,213 | 109 | 105,547 |
| Airbus Industrie A320-200n | 1,023 | 186 | 158,553 |
| Airbus Industrie A319 | 1,003 | 130 | 101,995 |
| Airbus Industrie A320-100/200 | 944 | 156 | 111,149 |
| Airbus Industrie A321-200n | 737 | 233 | 132,088 |
| Boeing 737-900ER | 619 | 179 | 88,861 |
| Canadair RJ-700 | 533 | 70 | 30,957 |
| Airbus Industrie A321Neoxlr | 395 | 212 | 62,694 |
| A220-300 BD-500-1A11 | 325 | 130 | 31,036 |
| Boeing 757-200 | 145 | 29 | 1,457 |
| Boeing B737 Max 900 | 65 | 179 | 9,883 |
| Canadair RJ-200ER /RJ-440 | 50 | 50 | 214 |
| Bombardier CRJ550 | 30 | 50 | 223 |
| Boeing 767-300/300ER | 21 | 0 | 0 |
| Embraer-Emb-170 | 9 | 71 | 497 |
| Airbus Industrie A350-900 | 4 | 302 | 862 |
| Airbus Industrie A300-600/R/CF/RCF | 1 | 0 | 0 |
| B787-900 Dreamliner | 1 | 279 | 252 |
| Airbus Industrie A330-300/333 | 1 | 282 | 113 |
| Airbus Industrie A330-200 | 1 | 223 | 78 |
SLC → DEN this direction alone · flown January 2025 to July 2026
7,959 flights of 7,894 scheduled, 901,851 passengers in 1,144,593 seats, 2,793,739 pounds of freight, 736,709 pounds of mail. Southwest Airlines Co. 2,321; Delta Air Lines Inc. 1,717; SkyWest Airlines Inc. 1,462; United Air Lines Inc. 1,322; Frontier Airlines Inc. 1,015; United Parcel Service 99; Air Canada 7; Federal Express Corporation 4; Lufthansa German Airlines 3; Sun Country Airlines d/b/a MN Airlines 3; American Airlines Inc. 2; Compagnie Natl Air France 1; Alaska Airlines Inc. 1; JetBlue Airways 1; Turk Hava Yollari A.O. 1.
DEN → SLC this direction alone · flown January 2025 to July 2026
7,855 flights of 7,827 scheduled, 903,418 passengers in 1,139,279 seats, 1,936,960 pounds of freight, 21,949 pounds of mail. Southwest Airlines Co. 2,305; Delta Air Lines Inc. 1,712; SkyWest Airlines Inc. 1,473; United Air Lines Inc. 1,311; Frontier Airlines Inc. 1,020; Federal Express Corporation 14; American Airlines Inc. 5; United Parcel Service 4; Air Canada 4; Sun Country Airlines d/b/a MN Airlines 3; KaiserAir, Inc. 1; Aeromexico 1; Alaska Airlines Inc. 1; Global Crossing 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: Salt Lake City International SLC and Denver International DEN; all routes.