Around the turn of the millennium, British Airways became the first airline to introduce lie-flat seats in business class. This created a drastic difference between economy and classes.

It’s been over five years since British Airways unveiled its latest business-class concept, the Club Suite. Here's what it's ...

Some airlines, such as American, Tui and United are exclusively Boeing – so their standard economy seats are all 17 inches. Most other airlines, such as British Airways, have a mixture of Boeing and ...