American Airlines will be ... and Flagship Business is Flagship First – the airline’s most premium class. It comprises only eight lie-flat seats, each with a width of 21.5 inches.

American Airlines forecasts its fleet of long-haul aircraft will increase from about 125 to 200 jets - including about 40 A321XLRs - by the end of the decade.

Two things: closed-door suites and lie-flat seats. Qatar Airways is commonly regarded as one of the most luxurious airlines out there. The business-class configuration on its wide-body A350 goes a ...