We flew out of Eugene yesterday afternoon, and the airport was pretty quiet. There don't seem to be any extra flights or anything, and it's a quiet airport. A guy at a coffee shop closer to the totality region said people had been flying in in private aircraft and camping at municipal airfields and paying $$$ to camp in farm fields. Your only issue will probably be the roads from wherever you watch back to where things open up a little in Eugene. Hotels and campgrounds weren't full during the week, so it doesn't seem like there were a ton of people getting in place early and they'll all be trying to get into place today and tomorrow.