For passengers air travel nowadays is travelling on planes that are often totally booked. This is because airlines are cutting flights. And with fewer passengers after the economic crisis hit, airlines are having a difficult time cutting flights enough to meet the continuing drop in the number of passengers. Before the crisis business and international travel was a good source of revenue, now this is fading as there is more competition on transatlantic routes with about 50 airlines offering flights between US cities and European cities. The liberalization of air travel between the two continents with the 2007 "open skies" agreement is keeping downward pressure on prices. The International Air Transport Association says the number of passengers travelling on business and first class tickets between N. America and Europe was down 18.4% in April 2009, compared with same month in 2008. Traffic between N. America and Asia was down 26%, for the same period. This is hitting Lufthansa ansd KLM-Air France hard, but is helping Easyjet, Ryanair, and Air Berlin. As demand drops airlines will continue to cut capacity, and this will be done by cutting the number of flights on a route and using smaller planes. After all this capacity cutting takes place by September, OAG Aviation estimates that the seats on domestic flights will drop to 66.5 million from a peak of 84 million in 2001, a drop of 21%. Some airlines which rely less on corporate travellers will not see as steep a drop. These airlines are Southwest, JetBlue and AirTran. Airlines that may not survive the effects of the economic crisis, with tight credit and drop in air travel, and volatile oil prices, are United Airlines and US Airways. United relied heavily on corporate and trans-Pacific fliers before the economic crisis. Fitrch Ratings cites this in reducing the credit rating for United to junk status, as well as the heavy debt maturities in 2009 and 2010. In June 2009 United raised $175 million by issuing new debt, but at an interest rate of 17%. At US Airways the combined airline with America West after a$1.5 billion merger is struggling. It has the thinnest cash position of any airline according to a Morningstar research analyst, and may need further borrowing to meet debt payments. With all assets already mortgaged US Airways may have little borrowing capability left....