Frontier Airlines says it’s cutting 100 jobs in Denver in the next few weeks and 120 positions at its Milwaukee hub in January.

Airline spokesman Peter Kowalchuk says most cuts in Denver will come through attrition. Some employees have also been asked if they’d be willing to move from full- to part-time work.

Frontier is in the midst of a $120 million financial restructuring. Bryan Bedford, chief executive of Frontier parent company Republic Airways, has said once the restructuring is complete Frontier could be sold or spun off as soon as this spring.

The airline filed notice in Wisconsin of the planned cuts, though details were not immediately available. Airline officials did not immediately return a message left by The Associated Press.