Hey,
Found this and thought I'd pass it along. Continental has fares Cleveland to Chicago and Chicago to Cleveland $66.00 each way plus taxes. Not the best deal, but still not bad. Here is the link:
http://www.continental.com/web/en-US/content/deals/offers/featured_fares_fll.aspx?camp=COSP&campyear=2007&sender=EMAIL_MKTG&language=EN

Love you!