Beginnings Plans for a new airport began in 1940, as evidence mounted that the older Shushan Airport (
New Orleans Lakefront Airport) was too small. The airport was originally named
Moisant Field after
daredevil aviator
John Moisant, who died in 1910 in an
airplane crash on agricultural land where the airport is now located. Its
IATA code MSY was derived from Moisant Stock Yards, as
Lakefront Airport retained the code NEW. In
World War II the land became a government air base. It returned to civil control after the war and commercial service commenced in May 1946. This structure, greatly expanded in the 1970s and the recipient of two rebuilt concourses in the 1990s and 2000s, comprised the passenger terminal until its replacement with the new North Terminal in November 2019. The former terminal contained two sections, East and West, connected by a central ticketing alley and baggage claim. Four concourses, A, B, C and D, were attached to the terminal, which eventually grew to a total of 47 gates. The vaulted arrivals lounge at the head of Concourse C and the adjacent, western half of the ticketing alley are the remaining portions of the airport's 1959 terminal complex. Retired United States Air Force Major General
Junius Wallace Jones served as airport director in the 1950s. During his term, a period of rapid change in civil aviation, the airport received many improvements. By the time the airport's 1959 terminal building opened, the name
Moisant International Airport was being used for the New Orleans facility. In 1961, the name was changed to
New Orleans International Airport. The airport's mid-1970s expansion included a lengthened main terminal ticketing area, an airport access road linking the terminal to
Interstate 10, and the construction of Concourses A and B. The two original 1959 concourses were renamed Concourse C and Concourse D, with the latter receiving a four-gate addition at its terminus, designed to accommodate widebody aircraft. In July 1978,
National Airlines began flights to
Amsterdam with continuing same-plane service to
Frankfurt utilizing widebody
McDonnell Douglas DC-10s. This was New Orleans' first nonstop transatlantic flight. Less than a month later, National added a stop in Tampa due to low demand. In May 1981,
British Airways inaugurated a flight from London's
Gatwick Airport to Mexico City that stopped in New Orleans. It flew a
Lockheed L-1011 TriStar on the route. The airline, then government-owned, discontinued the service in October 1982 because of its deepening financial problems.
Northeastern International Airways operated a small hub at MSY in the spring of 1984. Another airline that attempted to operate a hub at MSY was short-lived
Pride Air which was based in New Orleans and was operating nonstop or direct
Boeing 727 service from the airport to sixteen destinations, including cities in California, Florida, and the western U.S., in the summer of 1985. In July 2001, to honor the 100th anniversary of
Louis Armstrong's birth (August 4, 1901), the airport's name became
Louis Armstrong New Orleans International Airport.
Post-Katrina recovery and debut of new terminal MSY reopened to commercial flights on September 13, 2005, after the devastation of
Hurricane Katrina the previous month, with four flights operated by
Delta Air Lines to Atlanta and a
Northwest Airlines flight to Memphis. Slowly, service from other carriers began to resume. All international service into MSY was suspended while the FIS facility was closed post-Katrina. This facility was reopened in time to accommodate chartered flights arriving from London, Manchester, Bournemouth, and Nottingham (UK) carrying tourists arriving for the 2006
Mardi Gras and set to depart from the
Port of New Orleans aboard a cruise liner. MSY served 9,785,394 passengers in 2014, exceeding for the first time in the post-Katrina era the total passenger count of 9,733,179 achieved in 2004, the last full calendar year prior to Katrina's landfall in August 2005. A new record passenger count was set by the airport in 2015. 10,673,301 passengers were served, eclipsing the earlier record of 9.9 million passengers, set in 2000. In 2019 the airport served 13.1 million passengers. In December 2015, the New Orleans Aviation Board, along with New Orleans Mayor
Mitch Landrieu and the City Council, approved a plan to build a new $598 million terminal building on the north side of the airport property with two concourses and 30 gates. Designed by Argentine-American architect
Cesar Pelli, construction on the new main terminal began in January 2016. During the construction, the scope of the project was expanded so the terminal would feature 35 gates. In March 2017, British Airways resumed flying to MSY, commencing nonstop service to London's
Heathrow Airport using
Boeing 787 widebody aircraft. The new terminal opened in November 2019 at a cost of $1.3 billion. The former terminal, located on the south side of the airfield, is no longer in regular commercial use. ==Facilities==