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Long Island Mac Arthur Airport

Islip, United States

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Planning & Preparation

ISP Historical Analytics

90-day wait time patterns, hourly breakdowns, and best/worst time predictions for Long Island Mac Arthur Airport.

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Airport Information

About Long Island Mac Arthur Airport

Long Island Mac Arthur Airport (ISP) serves Islip in United States. Travelers flying through ISP can expect average security wait times of around 35 minutes, though this varies by time of day and season.

TSA PreCheck is available at ISP, letting enrolled travelers skip the standard screening line. PreCheck passengers typically wait about 8 minutes compared to the 35-minute standard line.

ISP Airport FAQs

How long is the security line at ISP?

Security wait times at Long Island Mac Arthur Airport vary by time of day and day of week. Check the wait time cards above for current estimates. Peak hours (6-9 AM, 4-7 PM) typically have longer waits.

Does ISP have TSA PreCheck?

Yes, Long Island Mac Arthur Airport has TSA PreCheck lanes available. PreCheck members typically experience significantly shorter security wait times.

How early should I arrive at ISP?

For domestic flights, arrive at least 2 hours early. For international flights, arrive 3 hours early. During peak travel periods and holidays, add an extra 30-60 minutes.

What terminals does ISP have?

Check the airport map for terminal information.

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Quick Info

IATA Code
ISP
Location
Islip
United States
Current Status
Busy Traffic
Current Weather
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TSA PreCheck
Available
Busiest Months
Jul Aug Dec

Peak Hours

6-9 AM High
11 AM-2 PM Low
4-7 PM High

Tips for ISP

  • Arrive at least 90 minutes early for domestic and 150 minutes for international flights.
  • Security is typically busiest 6-9 AM and 4-7 PM. Midday flights (11 AM-2 PM) usually have the shortest queues.
  • TSA PreCheck is available here. Enrolled travelers typically wait about 4 minutes โ€” roughly half the standard line.
  • Check-in online and have your boarding pass ready on your phone to save time at the airport.

Arrival Time

Domestic Flight
90+ min
before departure
International Flight
150+ min
before departure
Full Arrival Guide

Location

Islip, United States
40.7952°, -73.1002°
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ISP Airport FAQ

How long is the security line at ISP?

Security wait times at Long Island Mac Arthur Airport vary by time of day and day of week. Peak hours (6-9 AM, 4-7 PM) typically see the longest waits. FlightQueue provides real-time estimates based on historical data and crowd reports.

What is the best time to go through security at ISP?

The best times for shorter security lines at Long Island Mac Arthur are typically mid-morning (10-11 AM) and early afternoon (1-3 PM). Avoid the morning rush (6-9 AM) and evening peak (4-7 PM).

How early should I arrive at ISP?

For domestic flights at Long Island Mac Arthur, arrive 1.5-2 hours before departure. For international flights, arrive 2.5-3 hours early. During peak travel periods, add an extra 30 minutes.

Does ISP have TSA PreCheck?

Yes, Long Island Mac Arthur Airport offers TSA PreCheck lanes for faster security screening. Check FlightQueue for the latest checkpoint data.