USA 3000 Airlines - Offering scheduled, charter and ad-hoc operations in North America. - http://www.usa3000airlines.com/
United Airlines - Domestic and international airline tickets, all-inclusive vacation packages and travel deals. Includes route information, employment links and online booking. - http://www.united.com/
US Airways - International airline of the United States of America. Includes online reservations dividend Miles member resources, current promotions, news and general information. - http://www.usairways.com/
Ukraine International Airlines - Ukrainian carrier; flight schedules, frequent flyer programs, employment and fare specials. - http://ukraine-international.com