Eastern Illinois University is located in Charleston, Illinois, in rural east-central Illinois. Campus extends south of Illinois Route 16, called Lincoln Ave. (Campus map)
The city of Charleston is located roughly 10 miles east of Interstate 57, on Illinois Route 16 (Lincoln Ave). (Google Map of Charleston)
The local airport, Coles County Airport, is rather small and does not connect to commercial airlines. I recommend flying into Champaign - Willlard Airport (CMI) and renting a car. Champaign/Urbana is roughly 50 miles north of Charleston/Mattoon on Interstate 57.
Because of a large wedding event in town, there are limited hotel rooms available in Charleston. However, its sister city to the west, Mattoon, is located near Interstate 57, and has more rooms available. Mattoon is roughly 10 miles away.
October 11-12, 2019 is a campus holiday ("Fall Break"), so there will be no parking enforcement during this time. You are free to park legally in all lots around Doudna Fine Arts Center, except for loading zones and other specially marked spaces.