Frontier Airlines keeps its ticket prices low by following an ultra-low-cost model. This means you pay only for the seat, and any extras—like bags, seat selection, or snacks—come with additional fees. The airline also operates a single aircraft type (Airbus A320 family), which helps cut maintenance and training costs. Frontier maximizes efficiency with quick turnarounds, high seat density, and direct online sales to avoid middleman fees. In short, the low fares reflect a “pay-for-what-you-use” approach, allowing travelers to choose how much they want to spend instead of including everything in a higher ticket price.