US Airways is a giant. It is the fifth largest US carrier and operates right across the US of A to serve 190 communities in the U.S., Canada, Mexico, Europe, the Middle East, the Caribbean, Central and South America. It operates over 350 jet aircraft in its main fleet and another 320 smaller aircraft in its regional operations (including US Airways Express) but it has a dark secret kept by its most loyal passengers.. From December 2009 its new business class product across the Atlantic - branded as Envoy Class - is better by far than the more publicised, higher hyped alternatives.