Ceremonial knives and swords (e.g. a kirpan) with a blade 6 cm or less

Carry on baggage
Yes
Checked baggage
Yes

Ceremonial knives and swords (e.g. a kirpan) with a blade 6 cm or less are permitted when flying within Canada or to an international (non-U.S.) destination. Knives of any type or length are not permitted in your carry-on on flights to the U.S.