One gas-operated curling iron with its gas container per person, provided that the safety cover is securely fitted over the heating element. Separate gas refills for curling irons are permitted in checked baggage with the approval of the air carrier. The curling iron without the gas container is allowed in carry-on baggage.
CATSA encourages all passengers to arrive at their departing airport well in advance of their flight. Many airlines advise passengers to arrive two hours in advance for domestic flights and three hours in advance for US and international flights.