Spirit Airlines files for bankruptcy as financial blows pile up

Spirit Airlines said Monday that it has filed for bankruptcy protection and will attempt to reboot as it struggles to recover from the pandemic-caused swoon in travel and a failed attempt to sell the airline to JetBlue.

Spirit, the biggest U.S. budget airline, has lost more than $2.5 billion since the start of 2020 and faces looming debt payments totaling more than $1 billion over the next year.

Spirit said it expects to operate as normal as it works its way through a…