Indigo Partners announced that, through an affiliate, it has completed the acquisition of Frontier Airlines from Republic Airways Holdings. Final terms of the transaction, which was first announced on October 1, 2013, are not being disclosed.

Indigo Partners and its principals, led by managing partner William A. Franke, have considerable experience in successful, airline-related investments.

“Today is an exciting day for Frontier Airlines and Indigo Partners, as we can now embark on a new chapter in Frontier’s history of providing safe, reliable and fairly priced air service,” said Franke. “As air travel costs have moved higher, demand has grown for more affordable options and more choices. One key element to Frontier’s future success will be operating as an ultra low cost carrier that offers low fares. This model, coupled with the Frontier touch, will ensure opportunities for the Frontier team, and provide safe and reliable ULCC air service to our communities and beyond as we grow Frontier under this vision.”

Frontier will remain headquartered in Denver, Colorado.