Spirit expands premium seats and loyalty rewards to emerge from bankruptcy

Spirit First is the airline's rebranded "Big Front Seat" that was previously its only premium offering.

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• Spirit has moved away from its budget roots for a more hybrid approach to crawl out of bankruptcy.
• The carrier plans to expand first class and premium economy while keeping a cheap no-frills section.
• It's betting this mix will attract price-sensitive customers and create a stickier loyalty program.

Spirit Airlines is keeping fares cheap — but adding a Gucci belt.