Spirit Airlines announced it will permanently discontinue 11 routes serving U.S. cities as the budget carrier continues to grapple with mounting financial difficulties that have led to two bankruptcy filings in less than a year.

The routes set to be canceled on Oct. 2 include service to:

Plans to launch services in Macon, Georgia, later in October have also been canceled.

The airline said in a statement that it apologizes for the inconvenience to customers and will contact passengers with existing reservations to discuss their options.

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