Islip (ISP) TSA wait times
Security at Long Island MacArthur Airport is running about 6 minutes in the standard lane, and usually runs 5 to 10 minutes at noon on a Friday. PreCheck is moving in about 3 minutes.ISP security is about 6 minutes now, usually 5 to 10 at this hour. Busiest 10 to 11 AM and 1 to 3 PM.
Standard lane, right now
Security wait, last 7 hours
Usually 5 to 10 minutes now
Up 1 min since 6 am.
How long is security at Islip, and when is ISP busiest?
So how long is security at Islip? The left chart shows the Islip security wait time hour by hour, built from ISP's own departure schedule. The right ranks the days of the week by how long the wait gets. The calmest window is 4 to 8 PM; plan around the 10 to 11 AM and 1 to 3 PM rushes.Calmest 4 to 8 PM. Plan around the morning and evening rushes.
Planning a trip through ISP? Work out when to leave home for your flight, or read how these numbers are made. Flying a nearby airport instead? Compare White Plains (HPN) and New York (JFK), or every airport in New York.
Departures, the next few hours
| Hour | Departures | Typical security wait |
|---|---|---|
| noon (Now) | 1 flights | 6 min |
| 1 pm | 1 flights | 6 min |
| 2 pm | 1 flights | 7 min |
| 3 pm | 1 flights | 7 min |
| 4 pm | 1 flights | 6 min |
Standard, PreCheck, and CLEAR security lanes
ISP security, common questions
How early should I get to ISP?
For a domestic flight out of Islip, plan to be inside the terminal about an hour before departure, and about an hour for an international one. That covers a 5 to 15 minute checkpoint queue at the Saturday peak plus the walk to the gate. Outside the peak you can safely trim it; the calculator above works it out from your actual departure time.
What is the busiest time at ISP security?
Saturday around 10 am, when 2 departures' worth of passengers are converging on the checkpoint at once. The calmest hour with real traffic is Wednesday at 5 pm, at roughly 4 minutes.
Is TSA PreCheck worth it at ISP?
At the Saturday peak it turns a 5 to 15 minute queue into something closer to 3 minutes. Over a five year membership that is worth it if you fly more than about three round trips a year through an airport this busy. The trusted traveler calculator prices it against your own flying.
When does security open at ISP?
Long Island MacArthur Airport does not publish checkpoint opening hours in any national feed, so we will not invent them. What the schedule does show is that the first departures leave around 3 am, and checkpoints generally open about two hours before the first flight of the day.
How long is security at Islip?
At the Saturday peak around 10 am, the standard lane at ISP typically runs 5 to 15 minutes. Away from the peak it settles to roughly 4 minutes. These are modeled from the airport's own departure schedule, so they move hour by hour, which is what the chart on this page shows.
How much time does PreCheck save at ISP?
At the busy Saturday peak, PreCheck turns the standard 5 to 15 minute wait into about 3 minutes, a saving of roughly 7 minutes when it matters most. Off-peak the two lanes are much closer, because a short line is short in either one.
Tips for ISP, from the data
- Fly between 4 to 8 PM if you can. That window sits between the two daily rushes, when the checkpoint is at its calmest.
- The 11 am hour is the single busiest today, at about 8 minutes in the standard lane.
- Southwest runs 57% of departures here, so its checkpoints and gates carry the most traffic. Which airline you fly is what decides your terminal.
Related
Modeled from the flight schedule, not measured. How these numbers are made.