I'm going to Chicago in early October and wanted to go to Six Flags Great America. I've never been to a Six Flags before, originally I was going with a larger group but now it will only be me and one other person. They don't like roller coasters or haunted houses but said they'd be happy to wait while I go on the bigger coasters and they may get on a few smaller rides. Now I was just wondering how the vibe is during early October. I see the park is open 11am-11pm. Are the horror nights a separate ticket? Is there other not-scary Halloween activities? Should I get a flash pass to avoid waiting in so many lines, especially since my aunt that I'm with don't want to do many rides. Also I'm looking at the website, $90 per ticket sounds expensive. Is there any promos to get discount tickets legitimately?