Typically, a carry-on bag should not exceed 22 x 14 x 9 inches (inclusive of the handle and wheels). However, the rules can ...

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

Spirit’s carry-on bag fees vary between flights, but they tend to start at around $25 to $30 for U.S. domestic flights. If you need to bring carry-on luggage, it’s always cheapest to pay for ...

If you choose to pay extra for a carry-on bag on a Spirit flight, you'll also be dealing with different size requirements than most airlines, with 22-by-18-by-10 inches as the limit.

Spirit agent hospitalized, passengers arrested after bag dispute The group became combative after agents asked about the size of their carry-ons.

Spirit Airlines, meanwhile, started charging for carry-on bags in 2010, a trend that other low-cost carriers quickly adopted.

If you choose to pay extra for a carry-on bag on a Spirit flight, you'll also be dealing with different size requirements than most airlines, with 22-by-18-by-10 inches as the limit.