Wawona is located near the southern entrance to Yosemite National Park off of California Highway 41.
The closest airport is Fresno-Yosemite International (FAT). This is about 1 hour south of Yosemite National Park. It’s a small airport.
Larger airports in the Bay Area include San Francisco International (SFO, 3.75 hours), Oakland International (OAK, 3.5 hours), and San Jose International (SJC, 3.25 hours).