1900 to 1940 In 1911, a site for an air field was chosen on Basque Flats, named for Spanish-French sheep herders who worked the fields in the then-desolate area of the Salt Lake Valley, where a cinder-covered landing was subsequently created. The Great International Aviation Carnival was held the same year and brought aviation pioneers representing
Curtiss Aeroplane and Motor Company and a team representing the
Wright Brothers to Salt Lake City. World-famous aviator
Glenn H. Curtiss brought his newly invented
Seaplane to the carnival, a type of airplane that had never been demonstrated to the public. Curtiss took off from the nearby
Great Salt Lake, awing the 20,000 spectators and making international headlines. For several years, the new field was used mainly for training and aerobatic flights. That would change in 1920 when the
United States Postal Service (USPS) began
air mail service to Salt Lake City. The city bought a 100-acre tract around Basque Flats for $4,000 and built a field, hangar and other facilities. In the same year, the airfield was given the name Woodward Field, named for John P. Woodward, a local aviator. The first transcontinental air mail flight landed at Woodward Field on September 8. In 1925, the postal service began awarding contracts to private companies.
Western Air Express, the first private company to carry U.S. mail, began flying from Salt Lake City to Los Angeles via
Las Vegas. Less than a year later, Western Air Express would begin flying passengers along the same route. Western Air Express later became
Western Airlines, which had a large hub in Salt Lake City. The first terminal and airport administration building was built in 1933 at a cost of $52,000. By then,
United Airlines had begun serving Salt Lake City on flights between New York City and San Francisco. As air travel became more popular and the
United States Army Air Forces established a base at the airport during World War II, a third runway was added . The April 1957 Official Airline Guide shows 42 weekday departures: 18 on Western, 17 United and 7 Frontier. United had flown nonstop to Chicago since 1950, but nonstop service to New York did not start until 1968. The first jets were United 720s in September 1960.
1960 terminal A new terminal was needed and work began on the west side of the airport on Terminal 1, designed by Brazier Montmorency Hayes & Talbot and dedicated in 1960 after seven years of work and a cost of $8 million. In 1968, the airport became Salt Lake City International Airport when a non-stop route to
Calgary, Canada was awarded to Western Airlines. After
airline deregulation in 1978, hub airports appeared. Western Airlines, with ties to Salt Lake City since its inception, increased service into hub status on May 1, 1982. Terminal 2 was designed by Montmorency Hayes & Talbot and built solely for Western and had several murals by artist
LeConte Stewart. During the 1980s, the airport saw further expansion to both terminals as well as runway extension. In 1987, Western Airlines merged with Delta Air Lines. Salt Lake City would continue to be a major airline hub for Delta. In 1991, the airport opened a new short-term parking garage. The airport opened a new runway in 1995 along with the International Terminal and E concourse for
SkyWest Airlines, which was designed by
Gensler. A new
control tower, new approach control facility, and a new fire station were opened in 1999. Delta also added the first flight from Salt Lake City to Asia, a link to Tokyo's Narita Airport, the following June. The service aboard Airbus A330s resulted from Delta's merger with Northwest Airlines, which had a hub at Narita. Later that year, Delta made it seasonal. The airline stopped flying to Tokyo in October 2011.
New terminal and concourses The Airport Redevelopment Program broke ground in 2014, initiating construction of the New SLC terminal complex. This began the process of replacing the existing, aging facilities with all new facilities, including a rental car center, a parking garage, a terminal with two linear concourses (similar to
Atlanta,
Denver and
Washington–Dulles) with 93 gates (later changed to 94 gates), two tunnels, and an elevated roadway. The construction was funded by airport funds, passenger and customer facility charges, bonds, and federal grants. The Airport opened Phase 1 of the new terminal in 2020. This first phase consisted of the western portion of concourse A with 25 gates, and the western portion of Concourse B with 21 gates. The concourses were connected by a mid-field underground tunnel. After Concourse B opened, the old terminals and concourses were demolished, and then construction on concourses A and B east began. With the opening of the new airport, Delta Air Lines opened a brand new
Sky Club in concourse A, which at the time was the largest in their network. Phase 3 opened on October 22, 2024 including five additional gates in the eastern portion of concourse B, the Concourse B Plaza, additional concession options and the much anticipated central River Tunnel. The central tunnel, which allows passengers to directly access concourse B from just outside the security checkpoint, will reduce walk times to concourse B by as much as half. The Concourse B Plaza includes the reinstalled floor world map that was featured in the former terminal, as well as a 30-foot-long replica of an
allosaurus fossil. The remaining 5 gates of Phase 3 and first 5 gates of Phase 4 opened in the eastern portion of concourse B in October 2025. Along with the new gates and concessions, a second Delta Sky Club and the airport's only non-airline specific club, an American Express
Centurion Lounge were opened. Phase 4 will include the airport's first non-Delta club, a
United Airlines club that will be on the far east end of concourse B. The easternmost 11 gates of concourse B, to be completed in 2026, are also part of Phase 4. Future plans call for adding a tram to the central tunnel when a future concourse C is eventually built. All told, phase 2 through phase 4 are planned to add 48 new gates to the airport for a total of 94 gates. ==Facilities==