Spirit Airlines is quickly following through with a pledge to streamline its route system as management Thursday confirmed the elimination of service to a dozen U.S. cities early next month.

The cutbacks come less than a week after Spirit filed a fresh petition for Chapter 11 bankruptcy protection. The Dania Beach-based carrier emerged from bankruptcy last spring, but after wracking up sizable losses in the second quarter, returned to court in a bid to resolve various financial, fleet size and operational issues.

Effective the week of Oct. 2, the airline said it will no longer be serving the following cities:

Albuquerque, New Mexico

Birmingham, Alabama

Boise, Idaho

Chattanooga, Tennessee

Columbia, South Carolina

Oakland, California

Portland, Oregon

Sacramento, California

Salt

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