Louis Armstrong New Orleans International Airport (IATA: MSY, ICAO: KMSY), formerly Moisant Field, is located in Kenner, Louisiana and is the primary commercial airport for the New Orleans metropolitan area of southeast Louisiana and the second largest airport on the United States Gulf Coast. Sitting at an average of four feet above sea level, MSY is the lowest lying International Airport in the World with the exception of Schiphol International Airport in The Netherlands, which sits at eleven feet below sea level. Prior to Hurricane Katrina, MSY served nearly 10 million passengers per year, nearly all of them non-connecting. In 2009, it served 7,781,678 passengers.

The airport was originally named after daredevil aviator John Moisant, who died in an airplane crash on this land (which was devoted to farming at the time) in 1910. The abbreviation MSY was derived from Moisant Stock Yards, as the old airport kept NEW. MSY airport was renamed in 2001 after Louis Armstrong, a famous jazz musician from New Orleans.