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Spirit Airlines now offers two free checked bags for its Free Spirit Travel More Mastercard holders.

The new perk is part of an effort to enhance its loyalty program amid financial struggles.

The airline recently filed for bankruptcy for the second time in a year and is furloughing staff.

Travelers taking a Spirit Airlines flight may now get two checked bags for free, starting Tuesday, Sept. 23, according to a release .

There is a catch: you have to book your flight on the ultra-low-budget's website or through their app using the Free Spirit Travel More Mastercard, Spirit's card co-branded with the Bank of America.

"Our most loyal Guests know they get the greatest value when they choose Spirit, and now the Free Spirit Travel More Mastercard makes flying with us

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