COLUMBUS, Ohio (AP) - Skybus Airlines' $57 million in government incentives weren't enough to sustain its discount flights that ended Saturday.

The Columbus-based company plans to file for bankruptcy protection in the coming days.

The company's collapse will leave Port Columbus International Airport with fewer flights and about 350 Ohio residents without jobs. It will also leave the state and Columbus with a heavy investment that yielded just 10 months of air service.

Port Columbus invested millions in terminal improvements tailored to the Columbus-based airline. It now has five open gates, a ticket counter and some soon-to-be-emptied offices.

Company officials say high fuel prices and a rough economy forced their decision.

Aviation consultant Mike Boyd says the company's model was "dumb." He says the 10 dollar flights didn't make sense with fuel
at any price.

(Copyright 2008 by The Associated Press. All Rights Reserved.)