GoodReads Summary: 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 was the first book of Ursula that I've read, even if I'm used to read Scifi from Asimov, Clark and Heinlein. But Ursula is a complete different style from those.
"Changing Planes" can be described as "she took her dreams and turned into stories". It's a story of several "planes" of existence, each with its own history, its own culture and its own people. Each is different from the other in almost non-overlapping fashion.
At first it's kinda weird and uninteresting -- till you realize how much creativity one has to have to come up with several different different planets and their history.