All knives with blades longer than 6cm in length are restricted from your carry-on luggage but they can go in checked-in luggage.
If you do not need the knife during the flight, pack it in checked luggage or leave it at home.
Check Knives – illegal to make sure the knives you are carrying are not offensive weapons.
Large knives on board a plane could be used to seriously harm passengers and crew.
You will be asked to relinquish all dangerous or prohibited items found in your carry-on luggage. If you refuse:
We x-ray bags going on planes to make sure there is nothing dangerous in them. If something comes up on the x-ray that needs checking, the bag will be opened, searched and any dangerous or prohibited item will be removed.