What is the TSA wait at ISP right now?
No live security wait, and no historical wait, for Long Island MacArthur Airport (ISP). We will not estimate one.
HomeNew YorkISP TSA wait times
No live data
Long Island MacArthur Airport TSA wait times
ISP · KISP · Islip, New York
Security wait
No live security wait, and no historical wait, for Long Island MacArthur Airport (ISP). We will not estimate one.
PreCheck
PreCheck lanes are not in our historical feed for this airport.
CLEAR
CLEAR is not shown. We are not using a CLEAR source.
Departure delays
Historical on-time performance. Not a live delay.
75%
On-time departures, September 2025 through August 2026. A departure is on time when it left less than 15 minutes late.
Flights out of Long Island MacArthur Airport left on time 75% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (43%). That is a share of delay minutes, not a share of flights. The average delay among departures that were 15 minutes or more late was 71 minutes. 2% of scheduled flights were cancelled.
The highest on-time month was September 2025 (86%). The lowest was December 2025 (64%).
| Cause | Delay minutes | Share of delay minutes |
|---|---|---|
| late-arriving aircraft | 37,222 | 43% |
| the airline | 23,233 | 27% |
| the national airspace system | 19,977 | 23% |
| weather | 6,399 | 7% |
| security | 31 | 0% |
When to be at the airport
TSA's published guidance is to arrive at the airport 2 hours before a domestic departure and 3 hours before an international departure. That is guidance, not a measured security wait.
Nearby airports
- Tweed New Haven Airport HVN · New Haven34 mi
- Westchester County Airport HPN · White Plains37 mi
- John F. Kennedy International Airport JFK · New York37 mi
- LaGuardia Airport LGA · New York40 mi
- Teterboro Airport TEB · Teterboro50 mi
Distances are straight-line miles.
Airport details
- Runways
- 3
- Longest runway
- 06/24, 7,006 ft
- Longest runway width
- 150 ft
- Longest runway surface
- ASPH
- Longest runway lighting
- HIGH
- Elevation
- 98.7 ft
- Control tower
- Yes
- CY2024 enplanements
- 682,804
- Facility use
- Public
- Ownership
- Public
- Part 139 certificate code
- I C
- Fuel
- 100LL,A
- Airframe repair
- MAJOR
- Powerplant repair
- MAJOR
- Last inspection
- 2025/07/09
FAA facility record date 2026/10/01. Runways: BTS NTAD Runways. Facility facts: BTS NTAD Aviation Facilities. Enplanements: FAA CY2024 commercial service.
Questions
Does TSACheck have a live security wait for ISP?
No. TSACheck has no live feed and no historical wait for Long Island MacArthur Airport (ISP).
How often do flights leave ISP on time?
Flights out of Long Island MacArthur Airport left on time 75% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (43%). That is a share of delay minutes, not a share of flights. The average delay among departures that were 15 minutes or more late was 71 minutes. 2% of scheduled flights were cancelled.
How early should I get to ISP?
TSA's published guidance is to arrive at the airport 2 hours before a domestic departure and 3 hours before an international departure. That is guidance, not a measured security wait.
Which airports are near ISP?
The nearest airports in this list are Tweed New Haven Airport (HVN), 34 straight-line miles; Westchester County Airport (HPN), 37 straight-line miles; John F. Kennedy International Airport (JFK), 37 straight-line miles; LaGuardia Airport (LGA), 40 straight-line miles; Teterboro Airport (TEB), 50 straight-line miles.