Frontier Airlines New York Office, a popular low-cost airline in the United States, is located at LaGuardia Airport (LGA). This office serves as a convenient point of contact for consumers seeking to book flights, inquire about services, or resolve travel-related issues.The Frontier Airlines New York office is located at Terminal C at LaGuardia Airport in Queens, NY 11371. This terminal makes it convenient for travelers to receive assistance with check-ins, ticketing, and other duties.