As with most low-cost carriers, AirAsia does not offer passengers a free baggage allowance. It pays to plan ahead: you will save a significant amount of money by booking your bags ahead of time as opposed to at the airport. Prices vary greatly by destination so make sure to check in advance of flying. As for carry-on bags, AirAsia allows guests to bring on carry-on onboard (as well as a personal item) but they are quite strict about dimensions and weight. Carry-on bags must weigh less than 15 pounds and have dimensions of less than 56 x 36 x 23 centimetres.