Since I discovered Wi Coach Lines a few years ago I haven't driven myself to O'Hare or Midway since. This service is great, especially these days with inflated gas costs and what not. For less than it would cost for gas and parking you get a comfortable and safe ride into Illinois and/or back. As other reviewers have mentioned be sure to take a bus that departs much earlier than your flight (as you should always arrive early anyways) and everything will be fine.
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