Main Terminal Building
Ticket counters (Frontier, JetBlue and Southwest are listed), baggage claim, the TSA checkpoint, and a CNBC store and East End Getaway gift shop in the atrium.
Long Island MacArthur Airport (ISP) terminal guide
Islip, New York KISP #116 US airport by passengers
How ISP is laid out and how to move between buildings.
Terminals at ISP
Veterans Memorial Concourse
The gates, reached after the TSA checkpoint. Paradies gift shop is across from Gate A5. Dunkin and Great American Bagel share the concourse with one ATM across from Dunkin.
Moving between terminals
ISP has one main terminal building with the gates beyond security, so you do not need to transfer between terminals.
Reviewed October 12, 2026. Confirm details on the official airport website. Spotted a change?