US Airways and JetBlue Airways reported fourth-quarter net profits

. At US Airways, quarterly net income of $12 million compared to a $261 million loss a year earlier. The full-year 2006 result was a $304 million net profit. JetBlue's fourth-quarter net income of $17 million compared to $42 million loss a year earlier, while the average passenger fare rose 10 percent to $120. For full-year 2006, the carrier posted a $1 million net loss.