Directors of United Airlines parent UAL Corp. extended by four years to 2011 the employment contract of Glenn Tilton, the airline's chairman, president and chief executive officer, and gave him a hefty raise, the Wall Street Journal reports. The board also awarded a four-year contract to Chief Operating Officer Pete McDonald after another company tried to poach him, according to UAL. Tilton, 58, joined the airline in September 2002 on a five-year contract. A severe industry downturn pushed the nation's second-largest airline by traffic into bankruptcy court protection later that year; it emerged last February and returned to profitability in the second quarter of this year.