Lost & Found

Long Island Airport Lost and Found

Lost something at Long Island MacArthur Airport? Report it immediately — airport lost and found offices hold items for 30–90 days, but recovery rates drop sharply after the first 24 hours.

Left somewhere in the airport (not at security)

Airport Lost and Found

631-467-3315

Location: Main Terminal Building, Airport Operations; for items lost within the terminal building specifically, the Suffolk County Police Airport substation (631-467-3313) can also assist.

Hours: Not published on the airport's site; call during normal business hours for the fastest response.

Left at the TSA security checkpoint

TSA Lost Property

1-866-289-9673

For items left specifically at the ISP TSA checkpoint, contact the TSA Contact Center. File as soon as you notice something missing — items are typically logged and held for a limited period before disposal.

File a TSA claim online →

Note: items left in gate areas may also be held by the airline's gate staff — contact the airline directly for gate-area and on-board lost items.

What to do right now (step by step)

Check with the airline first — items left at gates or on the plane go to the airline, not the airport.
If lost in the terminal: call 631-467-3315 or go to Main Terminal Building, Airport Operations; for items lost within the terminal building specifically, the Suffolk County Police Airport substation (631-467-3313) can also assist..
If lost at the security checkpoint: call TSA at 1-866-289-9673 or file a claim online.
File an online claim if available — written claims are processed faster and create a searchable paper trail.
Check back in 24–48 hours — items are logged as they come in and may not appear in the system immediately.

Pro Tip

Lost checked luggage must be reported directly to your airline, not the airport — ISP's own Lost and Found line (631-467-3315) only covers items lost inside the terminal, parking lots, or on airport roadways.

Frequently asked questions

How long does ISP airport keep lost items?

Most airports hold unclaimed items for 30–90 days before donating or auctioning them. File your claim as quickly as possible to maximize recovery chances.

What if I left something on the plane?

Items left on aircraft go to the airline, not the airport lost and found. Contact the airline directly — each airline has its own baggage service phone number and online claim process.

How do I report a lost item at the TSA checkpoint at ISP?

Call TSA at 1-866-289-9673 or file a claim at tsa.gov/travel/customer-service. Items left at security checkpoints are held for 30 days.

Can I file a lost item report online for ISP?

ISP does not currently list a standalone online lost item report form. Call 631-467-3315 to file by phone or visit Main Terminal Building, Airport Operations; for items lost within the terminal building specifically, the Suffolk County Police Airport substation (631-467-3313) can also assist. in person.

Know exactly when to leave for the airport

The Leave-By Time calculator folds the live ISP TSA wait, real-time drive time from your door, and gate-walk distance into one exact time to leave home — no guesswork.

Calculate my Leave-By Time →

Long Island Airport Lost and Found

Lost something at Long Island MacArthur Airport? Report it immediately — airport lost and found offices hold items for 30–90 days, but recovery rates drop sharply after the first 24 hours.

Left somewhere in the airport (not at security)

Airport Lost and Found

631-467-3315

Location: Main Terminal Building, Airport Operations; for items lost within the terminal building specifically, the Suffolk County Police Airport substation (631-467-3313) can also assist.

Hours: Not published on the airport's site; call during normal business hours for the fastest response.

Left at the TSA security checkpoint

TSA Lost Property

1-866-289-9673

File a TSA claim online →

Note: items left in gate areas may also be held by the airline's gate staff — contact the airline directly for gate-area and on-board lost items.

What to do right now (step by step)

Check with the airline first — items left at gates or on the plane go to the airline, not the airport.

If lost in the terminal: call 631-467-3315 or go to Main Terminal Building, Airport Operations; for items lost within the terminal building specifically, the Suffolk County Police Airport substation (631-467-3313) can also assist..

If lost at the security checkpoint: call TSA at 1-866-289-9673 or file a claim online.

File an online claim if available — written claims are processed faster and create a searchable paper trail.

Check back in 24–48 hours — items are logged as they come in and may not appear in the system immediately.

Pro Tip

Frequently asked questions

How long does ISP airport keep lost items?

Most airports hold unclaimed items for 30–90 days before donating or auctioning them. File your claim as quickly as possible to maximize recovery chances.

What if I left something on the plane?

Items left on aircraft go to the airline, not the airport lost and found. Contact the airline directly — each airline has its own baggage service phone number and online claim process.

How do I report a lost item at the TSA checkpoint at ISP?

Call TSA at 1-866-289-9673 or file a claim at tsa.gov/travel/customer-service. Items left at security checkpoints are held for 30 days.

Can I file a lost item report online for ISP?

Know exactly when to leave for the airport

The Leave-By Time calculator folds the live ISP TSA wait, real-time drive time from your door, and gate-walk distance into one exact time to leave home — no guesswork.

Calculate my Leave-By Time →