Changing Planes — Ursula K. Le Guin

Sita Dulip has missed her flight. But instead of listening to garbled announcements in the airport, she has found a method of bypassing the crowds at the desks, the long lines at the toilets, the nasty lunch, the whimpering children and punitive parents, the bookless bookstores, and the blue plastic chairs bolted to the floor.

This method -- changing planes -- enables Sita to visit fifteen societies not found on Earth. She will encounter cultures where the babble of children fades over time into the silence of adults; where whole towns exist solely for holiday shopping; where personalities are ruled by rage; where genetic experiments produce less than desirable results. And many other exotic landscapes whose denizens are fundamentally human...