Can you bring multi-tool (with knife) on a plane?
Also known as: leatherman, swiss army knife, pocket tool
Strictly prohibited
Allowed in hold
Official TSA Rules & Reason
Multi-tools that contain knives, saws, or scissors with blades longer than 4 inches are strictly prohibited in carry-on bags. They must be packed in checked bags.
Official TSA SourceTraveler Packing Tip
Pack multi-tool (with knife) securely in your checked hold baggage before you head to the airport counter to avoid confiscation at security checkpoint lines.
Important Packing Guidelines
- ✓Knife-less multi-tools (pliers only) may be allowed, but officers have final discretion.
Frequently Asked Questions
Is multi-tool (with knife) allowed on a plane?▼
According to the TSA, multi-tool (with knife) is not allowed in carry-on bags and allowed in checked baggage. Multi-tools that contain knives, saws, or scissors with blades longer than 4 inches are strictly prohibited in carry-on bags. They must be packed in checked bags.
Can I bring multi-tool (with knife) in carry-on luggage?▼
Yes, multi-tool (with knife) is prohibited in carry-on bags. Knife-less multi-tools (pliers only) may be allowed, but officers have final discretion.
Are there any special rules for packing multi-tool (with knife) in checked baggage?▼
In checked bags, multi-tool (with knife) is allowed without restrictions. Knife-less multi-tools (pliers only) may be allowed, but officers have final discretion.
TSA Officer Discretion
The final decision rests with the TSA officer on whether an item is allowed through the security checkpoint. Rules and regulations can vary depending on international travel destinations or dynamic airport security alert levels.
Reviewed by BringOnPlane Editorial Team
This document has been reviewed and verified by our travel reference editors. All statuses, notes, and guidelines are checked against live security feeds from the TSA (Transportation Security Administration) and FAA (Federal Aviation Administration).
Official Regulation Citations
49 CFR § 1540.111(a)
TSA Security Rules for Tools & Bladed Objects — Transportation Security Administration (TSA)
This regulation mandates baggage safety constraints, hazardous materials classifications, or general prohibited carriage parameters for airline passengers flying within or into the United States.
Rule Change & Review History
Verified baggage allowance statuses and aligned conditions with TSA What Can I Bring updates.
Regulation Source