U.S. Airlines See Sharp Increase in Revenue for May CheapOair Staff June 22, 2010 general U.S. airlines see increase in May’s revenue U.S. Airlines furthered their recovery in May as they witnessed a greater demand and increased their prices. The U.S. airlines’ revenue per passenger mile – a common industry performance measure – for domestic flights increased by 14.1 % in May, their most productive increase this year. On trans-Atlantic routes, yield increased by 28.3 %, though after last year’s historical lows that followed a financial crisis. Trans-Pacific yield gained 25.2% and yields for flights to Latin America rose 10.9%. Yield is the standard price paid to fly one mile, not including taxes. Source: The Wall Street Journal