Pocket knives on planes

When travelling by air, pocket knives are subject to aviation security regulations designed to protect passengers and crew. During security screening, sharp or pointed objects are closely assessed and may be restricted from the aircraft cabin.

As a general rule, pocket knives are not permitted in hand luggage. Cabin baggage is screened in detail, and items classified as sharp objects may be removed at the security checkpoint, regardless of size or design.

For a general overview of restricted and permitted items in cabin baggage, see the article What You Can Take as Hand Luggage.

Pocket knives are generally permitted in checked baggage, provided the blades are properly secured. Careful packing helps reduce the risk of injury to security personnel and baggage handlers during inspection and transport.

While aviation security principles are broadly similar, specific requirements—such as blade length limits—are defined by individual airports or authorities. For example, Zurich Airport specifies that knives or scissors with blades longer than 6 cm must be packed in checked baggage. This illustrates how local criteria may apply in addition to general security rules.

As a precautionary measure, Victorinox recommends transporting your Swiss Army Knife™ in checked baggage whenever possible and verifying applicable regulations shortly before travelling.

While aviation security principles are broadly similar, specific requirements—such as blade length limits—are set by individual airports or authorities and may change over time.

For example, Zurich Airport* specifies that knives or scissors with blades longer than 6 cm must be packed in checked baggage. This illustrates how local criteria can apply in addition to general security rules.

To avoid inconvenience, travellers should check the official guidance of their airline and departure airport shortly before travelling.