carry on

Mr O'Leary said about 200,000 passengers per year have to pay extra to put carry-on luggage in the hold, and that he did not feel sorry for "chancers" trying bring "rucksacks" aboard.

Plug-in hair straighteners and curling irons don’t have any flight restrictions so you’re free to pack them in your carry-on or check-in luggage.

But the TSA said their counterpart has restrictions: cordless hair styling tools that are powered by lithium metal or lithium ion batteries or gas or butane fuel are only allowed in carry-on bags.

Cordless hair styling tools, with the specific battery, gas or butane fuel, are only allowed in carry-on bags due to their combustible nature, according to a TSA spokesperson.

These items are only allowed to travel with you in your carry-on bag.