Looking for a cheap way to fly to Switzerland

Recently I have been confronted with two of my life goals and I am trying to find a way to make them happen. I have always dreamt of going to Switzerland and recently my life long favorite artist Thomas bangalter (daft punk) will be playing at Art Basel. I bought a ticket to the show just hoping something will align where I can go. I know dumb but I couldn’t pass it by. I’m able to fly out of Chicago or Detroit, I use kayak and going.com but I’m trying to find anything under $900. Anyone have advice?