Frontier Airlines operates from Concourse A at Louis Armstrong New Orleans International Airport (MSY). For those wondering what terminal is Frontier Airlines at MSY, the airline provides services through this modern concourse, which offers a range of amenities such as dining, retail shops, and traveler services. Concourse A's efficient layout ensures that passengers can easily navigate through security and reach their gates. Frontier Airlines travelers can expect a smooth boarding process and convenient access to transportation options upon arrival.