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On the airlines website, knives are listed as restricted items (but are not prohibited). I do not have any checked in luggage and am travelling from Darwin (Australia) to Singapore in Singapore Airlines. Can I carry a ceramic knife with me ?

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    Any weapons, whether real or replicas, are not allowed on board. And as usual, things are a bit different in planet USA.
    – Nean Der Thal
    Commented Aug 19, 2014 at 9:40
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    lol of course not, no. it makes no difference at all what material the knife is made of.
    – Fattie
    Commented Aug 19, 2014 at 10:11
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    @iconoclast Ceramic knives are a standard type of kitchen knife — they can supposedly stay sharp longer than metal blades.
    – anotherdave
    Commented Aug 19, 2014 at 18:21
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    I have seen children's water gun which was obviously a toy being taken away on Kuwait airport.
    – Ram
    Commented Aug 20, 2014 at 3:56
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    What is the reason why knives are forbidden on planes? Now, does it make any difference if the knife is made of ceramic?
    – njzk2
    Commented Sep 9, 2015 at 14:28

3 Answers 3

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No. Restricted items may only be carried in checked luggage. However, Singapore Airlines permits you to check at least 30 kg for free, so I would suggest you simply check your carry-on luggage.

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Knives don't go in carry-on, period. (maybe really small ones, depending on the country.) The material the knife is made of doesn't matter. Ceramic, wood (ebony will hold a nice edge), bone, flint and so on have all made fine weapons millenia before steel.

If you do pack a non-metallic weapon in the darker corners of your carry-on, and they find it, you could be up on an "artful concealment" charge, which is usually very serious. In contrast, a Crocodile Dundee grade Bowie knife will usually not cause any substantial grief - hiding the beast is impossible, you'll just get pointed back to baggage check.

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    in fact that knife may well land you an arrest for possession of an illegal weapon, depending on the country you're in.
    – jwenting
    Commented Aug 19, 2014 at 6:57
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    True, if it's not legal to carry it on the street. But I'm trying to illustrate concealed vs. non-concealed(able) restricted items.
    – Paul
    Commented Aug 19, 2014 at 9:27
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Anything that looks like a weapon is not allowed in the carry on, and this is pre 9-11. A long time ago I once caused quite a stir at LHR and EWR with a key chain shaped as a gun, the size of a thumb.

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    They're not entirely consistent. Before 9-11 I forgot to pack my Leatherman tool in my checked luggage, and they found it, looked at it, and let me keep it with me in the cabin. I was very surprised by this. However, when I was about 7 or 8 years old, I had an obviously plastic and obviously fake space-age looking toy "gun" confiscated from me because they said it could fool people (though only the blind and stupid could have been fooled by it).
    – iconoclast
    Commented Aug 19, 2014 at 16:28
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    I completely agree. A few years ago they confiscated my miniature screwdrivers while they failed to notice the big screwdriver in the same backpack.
    – Martin Argerami
    Commented Aug 19, 2014 at 16:50
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    The TSA agent working then already had all the big screwdrivers he needed ;)
    – iconoclast
    Commented Aug 19, 2014 at 17:00
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    January 2000 I bought a broad sword in Spain and tried to put it in checked luggage on the return to the US. They made me take it as a carry on and refused to let me take it as checked luggage.
    – Roddy of the Frozen Peas
    Commented Aug 19, 2014 at 21:02
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    How about the battleship piece from Monopoly?
    – Nick T
    Commented Aug 19, 2014 at 22:06

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