How Early Should I Arrive at ISP?
Planning your arrival at Long Island Mac Arthur Airport (ISP)? Based on TSA wait time data showing peak waits of 27 minutes, here are our recommended arrival times to ensure you don't miss your flight.
Recommended Arrival Times at ISP
Domestic Flights
International Flights
Holiday & Peak Travel Advisory
During Thanksgiving, Christmas, spring break, and summer travel season, add 30-60 minutes to these recommendations. Airport crowds can be significantly higher during peak travel periods.
Current TSA Wait Times at ISP
Average Wait
13 min
Peak Wait
27 min
Fridays at 3 PM
Early Morning
14 min
Before 6 AM
Quick Times
13
slots under 5 min
Best & Worst Times to Arrive at ISP
Busiest Times (Arrive Extra Early)
- - Morning rush: 6 AM - 9 AM (avg 13 min wait)
- - Evening rush: 4 PM - 7 PM (avg 13 min wait)
- - Busiest day: Wednesdays
- - Holiday periods: Major holidays + surrounding days
Best Times (Shorter Lines)
- - Early morning: Before 6 AM (avg 14 min wait)
- - Mid-morning: 10 AM - 12 PM
- - Late evening: After 8 PM
- - Quietest day: Tuesdays
Why You Need 2.5 hours at ISP
Here's how your time breaks down when arriving at Long Island Mac Arthur Airport:
Tips to Save Time at ISP
Get TSA PreCheck or CLEAR
TSA PreCheck ($78/5 years) lets you keep shoes, belt, and laptop in bag. CLEAR ($189/year) provides biometric verification to skip ID check lines.
Check in online
Check in 24 hours before your flight and download your mobile boarding pass to skip the check-in counter entirely.
Pack TSA-friendly
Follow the 3-1-1 rule for liquids, wear slip-on shoes, and keep electronics accessible to speed through security.
Know your terminal
Check which terminal your airline uses before arriving. Some airports require extra time for inter-terminal transfers.
First Time Flying from ISP?
If this is your first time flying from Long Island Mac Arthur Airport, here's what to expect when you arrive at the airport:
1 Arriving at the Airport
- - Follow signs to your airline's terminal
- - If driving, follow "Departures" signs to drop-off or parking
- - Allow extra time if using rideshare or public transit
2 Check-In Process
- - Use self-service kiosks or airline counter
- - Have your ID and booking confirmation ready
- - Drop checked bags at the bag drop counter
3 TSA Security Screening
- - Have boarding pass and ID ready
- - Remove laptops, liquids (3.4oz max), and shoes
- - Empty pockets and remove belts before screening
4 Finding Your Gate
- - Check departure screens for your gate number
- - Follow signs to your gate (gates can change!)
- - Be at the gate 30 min before boarding
Pro tip: Download your airline's app to get real-time gate updates and mobile boarding passes.
ISP Airport Arrival FAQ
How early should I arrive at ISP airport?
For domestic flights at Long Island Mac Arthur Airport, arrive at least 2.5 hours before departure. For international flights, arrive 3.5 hours early. During peak times (Fridays around 3 PM), consider arriving even earlier as TSA wait times can reach 27 minutes.
How early should I get to ISP for a domestic flight?
Arrive at least 2.5 hours before your domestic flight at ISP. This allows time for parking/transit, check-in, TSA security (averaging 13 minutes), and walking to your gate. If you have TSA PreCheck, you may be able to arrive 2 hours early during off-peak times.
How early should I arrive at ISP for an international flight?
For international departures from Long Island Mac Arthur Airport, arrive 3.5 hours before your flight. International flights require additional time for document verification, potential customs pre-clearance, and longer check-in processes. With TSA lines averaging 13 minutes, the extra time ensures you won't miss your flight.
How long does it take to get through security at ISP?
TSA security wait times at ISP vary by day and time. Peak waits can reach 27 minutes (typically on Wednesdays), while off-peak times average 14 minutes. There are 13 time slots with waits under 5 minutes, usually early morning or late evening.
What is the best time to go through security at ISP?
The best times to go through TSA at ISP are early morning (before 6 AM) with average waits of 14 minutes, and late evening. Avoid Wednesdays when lines are longest. Tuesdays tend to have the shortest wait times.
Should I arrive earlier at ISP during holidays?
Yes, during holidays and peak travel periods at Long Island Mac Arthur Airport, add at least 30-60 minutes to the standard arrival times. For domestic flights, arrive 2.5-3 hours early. For international flights, arrive 3.5-4 hours early. Check-in lines, TSA, and terminals will be significantly busier during Thanksgiving, Christmas, spring break, and summer travel season.