Carry-on bags cannot contain knives other than plastic or round-bladed butter knives.

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Can you bring a knife on a plane?

Knives in the AirIt is permissible to check pocketknives and Swiss army knives with the Transportation Security Administration (TSA), but not to bring them on board the plane in carry-on luggage.

Can you bring knives in a checked bag?

The answer is a resounding “yes.”Except for plastic or round-bladed butter knuckles. ‘ To protect baggage handlers and inspectors, sharp objects in checked luggage should be sheathed or securely wrapped. Please see the ‘What Can I Bring?’ page for a complete list of prohibited items.

What knives are allowed on planes?

Knives with blades less than 2.36 inches long and less than half an inch wide will be permitted by the TSA starting on April 25. Billiard cues, ski poles, hockey sticks, and lacrosse sticks will all be permitted once more in carry-on luggage.

How big of a knife can you check on a plane?

When it comes to allowed edged blades, the TSA has a set of requirements: no longer than 2.36 inches in length, no wider than 0.5 inches, no blade lock, and no molded handle.

Can you mail a knife?

Cutlery isn’t on the USPS’s list of prohibited items; it is perfectly legal to ship knives via USPS. We use the term “knives” to refer to a wide range of implements.