In today’s premium cabins, the latest flex isn’t Champagne or caviar—or even a sliding door. It’s quiet luxury. Business class has been edging toward residential elegance for years, but on a recent long-haul flight ensconced in Cathay Pacific’s new Aria Suite, this trend felt fully realized.
The details prove the point: The suite’s accent-light fixture could sit comfortably in a midcentury-modern living room (and can even be tuned to your ideal hue). Nearly every…

