No — a Swiss Army knife or multi-tool with any blade cannot go in your carry-on, no matter how short the blade. Pack it in checked baggage with the blade folded and the tool wrapped. Blade-free multi-tools are generally allowed in the cabin.
Swiss Army Knife / Multi-Tool is not allowed in carry-on bags through TSA security, but you can pack it in your checked luggage. Swiss Army Knife / Multi-Tool is not allowed in carry-on bags — Any attached blade is prohibited. Multi-tools with blades are not allowed in carry-on regardless of blade size. TSA officers have the final say on what is allowed through the checkpoint. If you are unsure, check the TSA website or ask an officer at the airport.
The blade is what triggers the rule. Tools without any cutting edge are usually fine in the cabin, but TSA officers make the final call.
| Item | Carry-on | Checked |
|---|---|---|
| Multi-tool with knife blade | Not allowed | Allowed |
| Multi-tool with saw or serrated edge | Not allowed | Allowed |
| Pliers-only multi-tool (under 7 inches, no blade) | Conditions apply | Allowed |
| Keychain bottle opener / screwdriver bit only | Allowed | Allowed |
| Pocket knife | Not allowed | Allowed |
Sharp objects like knives and razor blades are generally prohibited in carry-on bags but may be packed in checked luggage when properly sheathed. Scissors with blades shorter than 4 inches are allowed in carry-on bags.
Not in a carry-on. Any Swiss Army knife with a blade is prohibited past the checkpoint regardless of blade length. It is allowed in checked baggage with the blades folded and the tool wrapped.
Yes. Leathermans and similar pliers-style multi-tools are permitted in checked bags. Fold the tools closed and wrap the head so the blades and saw cannot injure anyone inspecting the bag.
Usually yes. Blade-free tools such as pliers under seven inches, screwdrivers, and bottle openers are generally permitted in the cabin, but the officer at the checkpoint makes the final decision.
No, Swiss Army Knife / Multi-Tool is not allowed in carry-on bags. Any attached blade is prohibited. Pack it in checked luggage instead.
Yes, Swiss Army Knife / Multi-Tool is allowed in checked baggage. Pack it securely to prevent damage.
If Swiss Army Knife / Multi-Tool is found in your carry-on, TSA will ask you to surrender it, return it to your vehicle, give it to a companion, mail it to yourself, or place it in checked luggage if time permits.
TSA rules apply at U.S. airports regardless of destination. However, your arrival country may have different import regulations for Swiss Army Knife / Multi-Tool. Check the customs rules of your destination before packing.