Members of the Free Spirit loyalty program earn points when they pay for Spirit Airlines fares, as well as optional extras like assigned seats and bags. What's more, members with a Free Spirit ...

For travel to or from Canada, the Caribbean, Mexico, Central America and Guyana, the first checked bag costs $35 and $45 for a second bag. Carry-on bags and a personal item are free on most routes ...

Frontier and Spirit are two of the most popular ultra-low-cost carriers, but which is the better airline, and which offers ...