The best business-class seats — including closed-door seats, lie-flat seats, and next-level amenities — in the sky right now.

Singapore gave few specific details about the upgraded cabins, but one thing is clear: the airline is finally adding a sliding door to business class. The privacy door, a flyer favorite ...

and this all helps to take the experience from pleasant to premium. Singapore Airlines business class on the Airbus A350-900. Up to 40kg of checked baggage is permitted for business class ...