Alaska Air ( ALK) Friday said restructuring and fuel-hedging costs led to a wider fourth-quarter loss, but the carrier still managed to beat earnings expectations.The parent of Alaska Airlines had a net loss of $44.9 million, or $1.66 a share, compared with a net loss of $16.1 million, or 60 cents a share, in the year-ago period. Excluding items, the net loss was $14.3 million, or 53 cents a share. Analysts expected a loss of 65 cents a share, according to a survey by Thomson First Call. The quarter included a restructuring charge of 59 cents a share. Revenue rose to $597.9 million from $564.8 million. Passenger traffic increased 10.2%, while capacity rose 5.0%. "The improvement in our operating results for the year shows that we are continuing to make headway with our restructuring," the company said. "Our move in early 2004 to simplify fares, coupled with our employees' ongoing focus on the customer experience, contributed to a jump in our passenger traffic and loads." Shares rose 12 cents, 0.4%, to $28.75.