Lost & Found

Ontario Airport Lost and Found

Lost something at Ontario International 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

909-544-5128

Location: Terminal 2, behind the Information Desk (2500 E. Airport Drive, Ontario, CA 91761)

Hours: Mon–Fri 9am–6pm PST; closed weekends and holidays. Evening/weekend pickup appointments can be arranged by calling during normal business hours. Items are held 90 days before disposal.

File an online claim →

Left at the TSA security checkpoint

TSA Lost Property

1-866-289-9673

If an item was left at the security checkpoint (not on the plane or in the terminal generally), TSA officers typically log and hold it locally before transferring it to the airport's own lost & found — call ONT's Lost & Found office (909-544-5128) first, since checkpoint items are usually consolidated there quickly. File a TSA claim if you believe TSA screening staff have it.

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 909-544-5128 or go to Terminal 2, behind the Information Desk (2500 E. Airport Drive, Ontario, CA 91761).
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

ONT's Lost & Found is closed on weekends, so if you realize something is missing on a Saturday or Sunday, submit the online claim form right away rather than waiting to call — that starts the search immediately, and staff can arrange a by-appointment pickup once they process it during the next business day.

Frequently asked questions

How long does ONT 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 ONT?

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 ONT?

Yes — ONT has an online lost item report form. Filing online is recommended as written claims are typically processed faster than phone reports alone.

Know exactly when to leave for the airport

The Leave-By Time calculator folds the live ONT 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 →

Ontario Airport Lost and Found

Lost something at Ontario International 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

909-544-5128

Location: Terminal 2, behind the Information Desk (2500 E. Airport Drive, Ontario, CA 91761)

Hours: Mon–Fri 9am–6pm PST; closed weekends and holidays. Evening/weekend pickup appointments can be arranged by calling during normal business hours. Items are held 90 days before disposal.

File an online claim →

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 909-544-5128 or go to Terminal 2, behind the Information Desk (2500 E. Airport Drive, Ontario, CA 91761).

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 ONT 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 ONT?

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 ONT?

Yes — ONT has an online lost item report form. Filing online is recommended as written claims are typically processed faster than phone reports alone.

Know exactly when to leave for the airport

The Leave-By Time calculator folds the live ONT 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 →