Louis Armstrong New Orleans International Airport

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.[4] In World War II the land became a government air base. It returned to civil control after the war and commercial service began at Moisant Field in May 1946.

On September 19, 1947, the airport was shut down as it was submerged under two feet of water in the wake of the 1947 Fort Lauderdale Hurricane's impact.

When commercial service began at Moisant Field in 1946, the terminal was a large, makeshift hangar-like building—a sharp contrast to airports in then-peer cities. A new terminal complex, designed by Goldstein Parham & Labouisse and Herbert A. Benson, George J. Riehl and built by J. A. Jones Company, debuted in 1959 towards the end of Mayor DeLesseps "Chep" Morrison's administration. The core of this structure formed much of the facility used until November 2019.[5] Retired United States Air Force Major-General Junius Wallace Jones served as airport director in the 1950s. During his term, the airport received many improvements.

The April 1957 Official Airline Guide (OAG) listed 84 weekday departures:

• Delta Air Lines: 26
• Eastern Air Lines: 25
• National Airlines: 11
• Pan American World Airways: 6
• Capital Airlines: 5
• Southern Airways: 4
• TACA: 4
• Braniff International Airways: 3

The front cover of the June 1, 1961 Capital Airlines timetable proclaimed: NEW BOEING 720 JETS - NEW YORK-ATLANTA-NEW ORLEANS - 2 ROUND TRIPS DAILY [6] Capital was then acquired by and merged into United Airlines which in 1963 was operating nonstop Boeing 720 and Sud Aviation Caravelle jet flights to Atlanta with continuing direct jet service to New York City, Washington, D.C., and Philadelphia.[7]

In 1969, Braniff International was operating direct, no change of plane service to Honolulu via a stop at Dallas with Boeing 707-320 jetliners flying the route three days a week with one of the flights also making a stop at Hilo.[8] By the early and mid 1970s, airlines operating jet service into the airport included domestic air carriers Braniff International, Continental Airlines, Delta Air Lines, Eastern Air Lines, National Airlines, Southern Airways, Texas International Airlines and United Airlines as well as Central American airlines Aviateca and SAHSA.[9][10] In 1974, two airlines had begun operating wide body jetliners into the airport: National with McDonnell Douglas DC-10 nonstops from Houston Intercontinental Airport, Los Angeles, Miami and Tampa, and Delta with Lockheed L-1011 TriStar nonstop service from LaGuardia Airport in New York City.[11] Several other airlines also operated wide body jets on domestic flights into the airport at various times during the 1980s and early 1990s including American Airlines and Pan Am with the DC-10,[12] Eastern with the L-1011 TriStar,[13] and Continental and Northeastern International Airways with the Airbus A300 with the latter air carrier operating a small hub at MSY in the spring of 1984.[14][15] Another airline which 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.[16]

During the 1960s, Japan Airlines (JAL) used New Orleans as a technical stop on its multi-stop special service between Tokyo and São Paulo, Brazil.[17][18] On January 25, 1979, Southwest Airlines began nonstop Boeing 737-200 flights between New Orleans and Houston Hobby Airport thus marking the first time this air carrier had operated service outside of the state of Texas. By early 1985, air carriers operating jet service into MSY besides Southwest included American Airlines, Continental Airlines, Delta Air Lines, Eastern Air Lines, Florida Express Airlines, LACSA, Muse Air, New York Air, Northwest Airlines (operating as Northwest Orient Airlines at this time), Ozark Air Lines, Pan Am, Piedmont Airlines, Republic Airlines, Trans World Airlines (TWA), United Airlines, USAir and Western Airlines with commuter air carriers Air New Orleans and Royale Airlines operating small turboprop aircraft into the airport at this same time as well.[19]

By the time the 1959 airport 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.[20] 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.[21]

During the administration of Morrison's successor, Vic Schiro, the government sponsored studies of the feasibility of relocating New Orleans International Airport to a new site, contemporaneous with similar efforts that were ultimately successful in Houston (George Bush Intercontinental Airport) and Dallas (Dallas-Fort Worth International Airport). This attempt got as far as recommending a site in New Orleans East; a man-made island was to be created south of I-10 and north of U.S. Route 90 in a bay of Lake Pontchartrain. In the early 1970s it was decided that the current airport should be expanded instead, leading to the construction of a lengthened main terminal ticketing area, an airport access road linking the terminal to I-10, and the present-day Concourses A and B. New Orleans Mayor Sidney Barthelemy, in office from 1986 to 1994, later reintroduced the idea of building a new international airport for the city, with consideration given to other sites in New Orleans East, as well as on the Northshore in suburban St. Tammany Parish. Only a couple months before Hurricane Katrina's landfall, Mayor Ray Nagin again proposed a new airport for New Orleans, this time to the west in Montz. These initiatives met with the same fate as 1960s-era efforts concerning construction of a new airport for New Orleans.

Armstrong Airport, June 2007

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, with limited service offered by Southwest Airlines, Continental Airlines, and American Airlines. Eventually, all carriers announced their return to MSY, with the exception of America West Airlines (which merged into US Airways two weeks later) and international carrier TACA. In early 2006, Continental Airlines (since merged into United Airlines) became the first airline to return to pre-Katrina flight frequency levels, and in September 2006, to pre-Katrina seat capacity levels.

All international service into MSY was suspended while the FIS facility was closed post-Katrina. The facility reopened to chartered flights arriving from London, Manchester, Bournemouth, and Nottingham, UK—all carrying tourists in for Mardi Gras and set to depart aboard a cruise liner.

On November 21, 2006, the New Orleans Aviation Board approved an air service initiative to promote increased service to Armstrong International:

• Airlines qualify for a $0.75 credit per seat toward terminal use charges for scheduled departing seats exceeding 85% of pre-Katrina capacity levels for a twelve-month period.
• Airlines qualify for a waiver of landing fees for twelve months following the initiation of service to an airport not presently served from New Orleans.

On January 17, 2008, the city's aviation board voted on an amended incentive program that waives landing fees for the first two airlines to fly nonstop into a city not presently served from the airport. Under the new ruling, landing fees will be waived for up to two airlines flying into an "underserved destination airport." The incentive previously referred to service to a "new destination airport."

In May 2010, AirTran announced new daily nonstop service to its hub in Milwaukee utilizing Boeing 717 twin jet aircraft, which then commenced on October 7, 2010.[22] This route marked MSY's first all-new city addition since 1998. AirTran was acquired by Southwest Airlines, which in turn began operating the route. In November 2010, United Airlines announced resumption of daily nonstop service to San Francisco, the largest pre-Katrina domestic market that had yet to resume service to New Orleans. On July 16, 2012, Spirit Airlines announced nonstop service from Dallas-Fort Worth to New Orleans, commencing in January 2013. Spirit became the first all-new domestic carrier, and second all-new carrier overall (after WestJet) to announce service to MSY, since 1998.

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.

On December 21, 2015, the New Orleans Aviation Board, along with the Mayor of New Orleans and 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.[23] Construction began January 2016, with Hunt-Gibbs-Boh-Metro listed as the contractor at-risk.

Because of faster than expected growth at the airport, in March 2017 the New Orleans Aviation Board voted to add an approximate $178 million expansion to the new terminal complex bringing the total construction cost to $993 million, adding a third concourse and increasing the number of gates to 35.[24] Final construction costs for the project were $1.3 billion.[25]

Grand opening of the Delta SkyClub at MSY, on Wednesday, Nov. 6, 2019.

The opening of the terminal was delayed four times. The original targeted completion date was May 2018, which would have been in time for New Orleans' 300th anniversary, but it was first delayed to October 2018. With the additional expansion the anticipated opening date was moved to February 2019 so that the entire complex could open at once. Due to a main sewer line issue, the opening of the new terminal was further pushed back to May 2019.[26] In April 2019 the opening was further delayed until Fall 2019.[27] The facility finally opened on November 6, 2019.[28]

One reason for the delay in opening the new terminal was lack of dedicated interstate access to the new facility.[29][30] New flyover-style interstate exits did not begin construction until shortly before the terminal opened and aren't expected to be completed until 2023.[29][31] Until then, the current interstate exit closest to the new terminal, Loyola Drive, has been expanded to handle the increased traffic.[32][33]

The new terminal has a centralized security checkpoint with new shops and restaurants behind the security checkpoint, including a number of restaurants run by local chefs.[34] A new garage with 2,190 parking spaces has been built, [24] and a new, privately funded airport hotel is planned. Airlines flying out of MSY have also, at their expense, funded the construction of a $39 million fuel system.[35][36]

The plans also call for demolishing concourses A, B and C of the existing southside terminal complex, while repurposing concourse D for charter services and administrative offices. The old terminal has 34 gates but only used 30 gates; the new terminal is designed for 35 gates, with an option to expand to 42.

New terminal

The terminal is on the north side of the airfield and has 35 gates.[37] Departures and Ticketing are on Level 3, TSA Security Screening is on Level 2, and Arrivals and Baggage Claim are on Level 1.[38]

Concourse A has 6 gates, 5 of which are capable of accepting International Arrivals. All of the concourse's gates are common use, with current patronage by Allegiant Air, American, American Eagle, Air Canada Express, British Airways, Condor, Copa, Sun Country and Vacation Express.[39]

Concourse B has 14 gates. Airlines assigned to this concourse are Allegiant Air, American, American Eagle, Frontier and Southwest.[40]

Concourse C has 15 gates. Airlines assigned to this concourse are Alaska, Delta, Delta Connection, JetBlue, Spirit, United and United Express.[41]

The terminal is served by Interstate 10 at exit 221.[42] Bus service between the airport and downtown New Orleans is provided by New Orleans Regional Transit Authority Airport Express Route 202 and Jefferson Transit bus E-2.[43] Airport Shuttle has services to most hotels and hostels in the Central Business District of New Orleans for $24 per person (one-way) and $38 per person (round-trip).[44]

The rental car facility is on the south side of the airfield next to the former terminal.[45]