Liquid, aerosol or gel deodorant

Carry on baggage
Yes (<100ml)
Checked baggage
Yes

Liquid, aerosol or gel deodorant: 100 ml (3.4 oz.) or smaller container permitted in carry-on. 

Aerosol deodorant: These items are also subject to limits in checked baggage. Each passenger can bring a maximum of 500 ml or 500 g per container, with a total net quantity not to exceed 2 L or 2 kg per person. Release valves on aerosols must be protected by a cap or other suitable means to prevent inadvertent release of the contents.

Solid deodorant in carry-on baggage is not subject to the size/volume restrictions.