A congressional report said Frontier and Spirit's cash incentives encourage airport agents to charge for carry-on bags that ...

you may be surprised that you must pay for your carry-on bag on Spirit Airlines. Only one personal item like a purse or a laptop bag that’s smaller than 18 inches by 14 inches by 8 inches is ...

Carry-on bags are not included in the base fare and incur additional fees. The maximum dimensions for a carry-on bag are 10 x ...

Active-duty U.S. military members and their accompanying spouse and/or children traveling on Spirit get two free checked bags and a free carry-on, in addition to the already free personal item.