Frontier plans to start ripping out the first two rows of its three-by-three economy seats to add four first-class seats, in a two-by-two configuration. The

Frontier is adding premium seating tier to its offerings. Here's what it will look like, and when it will be available.

Starting in 2025, Frontier Airlines will roll out first-class seating as part of a trend of low-fare carriers offering more options to lure travelers who are willing to pay for premium accommodations.