Frontier Airlines is offering passengers a free checked bag in a promotion taking direct aim at Southwest after the rival budget airline dropped its longtime "bags fly free" policy. On Tuesday ...

A Frontier Airlines plane near a Spirit Airlines plane in Fort Lauderdale, Fla., in 2022. Joe Raedle / Getty Images file. Jan. 29, 2025, 10:02 AM EST / Source: CNBC. By Leslie Josephs, CNBC.

Frontier Airlines is the latest no-frills carrier getting into the premium seating game — with what it’s referring to as “first class-style” seats.