Arlington, UNITED STATES: A Frontier Airlines jet takes off from Ronald Reagan International Airport 17 August 2005 in Arlington, Virginia, before the US Capitol in neighboring Washington, DC. With the inexorable rise of oil prices, aviation fuel has overtaken personnel as the greatest operating cost for airlines. AFP Photo/Paul J. RICHARDS (Photo credit should read PAUL J.RICHARDS/AFP via Getty Images)
Photo: PAUL J.RICHARDS / AFP / Getty Images