Lost & Found

Missoula Airport Lost and Found

Lost something at Missoula Montana 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

406-728-4381

Location: Airport Administration Office

Hours: Mon–Fri 8:00am–4:30pm (closed holidays)

File an online claim →

Left at the TSA security checkpoint

TSA Lost Property

1-866-289-9673

Contact TSA directly only for items lost at the security checkpoint (bins, trays, checkpoint area); for anything lost past security in the gate areas or left on a plane, contact the airport administration office or your airline first.

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 406-728-4381 or go to Airport Administration Office.
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

Items left onboard an aircraft go to the airline, not the airport — contact your airline directly first. For anything else left in the terminal or on the grounds, call airport administration or file the online claim form; MSO holds found items for 45 days, so the sooner you report it, the better your odds of recovery.

Frequently asked questions

How long does MSO 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 MSO?

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 MSO?

Yes — MSO 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 MSO TSA wait, real-time drive time from your door, and gate-walk distance into one exact time to leave home — no guesswork.

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TSA·WAIT·TIMES