As a key international gateway to and from New York City, John F. Kennedy International Airport (JFK) is one of the busiest Delta Airlines JFK Terminal airports in the United States. One of the major airlines with both local and international flights based at JFK is Delta Airlines. Depending on the destination, Delta Airlines operates out of JFK’s Terminals 2 and 4. While Terminal 4 manages a large portion of the airline’s foreign operations, Terminal 2 serves as the primary hub for local flights.