Can You Bring Multi-tool (with knife) on Ryanair?
A detailed guide on flying with multi-tool (with knife) on Ryanair flights, including FAA battery safety regulations and airport security guidelines.
Carry-on Cabin Bag
NOT ALLOWED
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.
Ryanair Cabin Limit10 kg (22 lbs)
Checked Hold Baggage
ALLOWED
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.
Ryanair Checked Limit20 kg (44 lbs)
Baggage Safety Clearance Details
We confirm that multi-tool (with knife) checks out under the TSA core database guidelines. The regulatory authority hierarchy enforces TSA rules first, followed by Airline-specific baggage size and weight allowances.
Last reviewed: June 2026•Reviewed by BringOnPlane Editorial Team
Frequently Asked Questions
Yes, carriage depends on bag type. Under TSA and Ryanair rules, multi-tool (with knife) has carry-on status: NOT ALLOWED and checked bag status: ALLOWED.
Yes, Ryanair allows packing multi-tool (with knife) in checked baggage holds.
No, TSA and Ryanair prohibit carrying multi-tool (with knife) in cabin luggage.
For cabin bags, Ryanair enforces a limit of 10 kg (22 lbs). For checked luggage, the standard weight limit is 20 kg (44 lbs) per bag.
Yes, security officers inspect all items. If multi-tool (with knife) is flagged, they will perform manual baggage audits or physical screening.
Yes. Under IATA rules, airline operators can impose stricter regulations than TSA or FAA guidelines for hazardous, lithium, or liquid carriage.
Yes. For international routes, destination customs agencies (e.g. EU security, Japan Customs) may enforce different guidelines than domestic TSA rules.
Security inspectors will confiscate the item, and the baggage will be delayed. If it violates FAA hazardous material protocols, airlines may impose fines.