How many carry on bags can I bring onto a plane?

How many carry on bags can I bring onto a plane? I have one checked bag already. Would I be able to bring my baseball bag and a backpack for carry on luggage?How many carry on bags can I bring onto a plane?You can bring on a "carry-on bag" and a "purse". Or in other words, seeing as your a guy, two bags :)How many carry on bags can I bring onto a plane?you should be able to, most airlines allow two bags to bring on the plane with you but you should check the airline's website to make sure