Spirit Airlines is out of bankruptcy, hitting its target to emerge in the first quarter, after a crippling few years.

In an evolution from its budget-exclusive roots, Spirit is attempting to tap into the growing market for more upscale travel. It is now offering flight options with tiered prices,

The Florida-based airline had filed for bankruptcy protection last November, after years of losses, failed merger attempts and heavy debt levels.

Southwest Airlines' viral dig at the Mavericks has fans fired up on social media. The shade comes days after the airline's controversial baggage policy change.

Southwest Airlines will begin charging customers a fee to check bags. It's a significant change for the budget carrier, which built years of advertising campaigns around its policy of letting passengers check up to two bags for free.