Its A321 and A321neo jets have even more: As a budget carrier, Frontier's business model sees it offer passengers ... those crammed in at the back of the plane but without the high costs of ...

Spirit and Frontier, along with fellow discounter Allegiant Air, pioneered the airline a la carte model, with the ticket ... cushy seats at the front of the plane and gets a premium for them.

Frontier is reworking its network to allow almost all of its planes to return to their stations every night. The so-called out-and-back model inspired by European budget carriers is meant to ...