Airlines That Declare Bankruptcy: Frontier Airlines and....

There are lots of problems in the sky. Airlines are declaring bankruptcy. So far, some of the airlines that have not done fare well are the following: Frontier Airlines has filed for bankruptcy protection. It is the fourth U.S. carrier to do so in less than a month. Aloha, Skybus and ATA have already shut down. But Frontier says it will keep operating — and paying its workers.