Republic Airways Holdings (Indianapolis) has pledged to invest further in Frontier  Airlines Holdings, the parent of Frontier Airlines (2nd) (Denver) and Lynx Aviation. Upon approval of the bankruptcy court, Republic will supply $40 million in debtor in possession (DIP) funding. Frontier filed for Chapter 11 reorganization on April 10, 2008. Republic is the holding company for Chautauqua Airlines, Republic Airlines (2nd) and Shuttle America.