Airport Hours

The Main Terminal is open 24 hours a day, 7 days a week

The American Airlines ticket counter opens daily at 4:30am.


The Frontier Airlines ticket counter opens daily 90 minutes before its first flight each morning.

The Southwest ticket counter opens at 3:30am.

The TSA Screening Checkpoint opens at 3:45am.

The TSA recommends passengers arrive at the Airport at least 90 minutes before their flight during the holiday travel period.

All Airport Restaurants and gift shops are open daily at 4:00am.

Town of Islip Resident Parking Permits can be purchased in the Airport ID Office Monday-Friday between the hours of 8:30pm and 4:30pm.