Ad Links Buy a link » James Bernstein, Newsday It might cost more to fly by the first of the year, and for a change, soaring fuel prices will not be entirely to blame.

Airlines are facing the possible loss of a federal program that, since the Sept. 11, 2001, terrorist attacks, has provided carriers with less costly insurance than they had been getting from insurance companies. The insurers, finding the risks too high, virtually abandoned the commercial aviation industry after hijacked passenger planes were rammed into the World Trade Center and the Pentagon.

Under the Federal Aviation Administration's War Risk Insurance Program, which started a few weeks after the Sept.11 attacks, about 70 large and small airlines have been paying a total of about $150 million a year in premiums for coverage against damage, death or injury caused by terrorists, industry sources said Thursday.

The Department of Transportation this week extended the program until Dec. 31. But after that, its future is uncertain, according to airline and other experts.

A spokesman for the department said no decision has been made about whether to extend the insurance program further, but the matter is being evaluated. The decision will depend in part on the availability of commercial insurance, the spokesman said.

"It's very definite that if the airlines are forced to pay higher premiums, the cost is going to be reflected in higher fares to passengers," said Shalem Massey, a lawyer who specializes in the aviation industry, with law firm Bryan Cave in Irvine, Calif.

Although intense competition had blocked most major airlines from raising fares in the past, carriers have jacked up ticket prices 21 times since the beginning of 2005, according to a report by Jamie Baker, who follows the industry for the investment bank JPMorgan in Manhattan.

Even though fuel costs this summer are 142 percent higher than in 2000, major carriers including Southwest Airlines and Continental Airlines saw profits double in the second quarter. American Airlines reported a profit for the second time in the past 22 quarters.

"You could get to the point where customers say: I'm not going to fly. It's too costly. I'll drive or telecommute," said David Castelveter, a spokesman for the industry's major trade group, the Air Transport Association.

There might be room for compromise. Robert Hartwig, chief economist for the Insurance Information Institute, an industry trade organization in Manhattan, said insurers would like at least some of the airline business back.

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