Originally Posted by London Dude
No need to pre-book. Taxis at ORD are plentiful and a ride to the Loop should cost no more than $50, less if you're going to Michigan Avenue or Lincoln Park.
Alternatively you can take the CTA train. Blue Line trains take about an hour from the airport to the Loop and a ride costs $1.75. You are allowed free transfers to other lines at Washington, State, Clark, Adams, etc.
http://www.transitchicago.com/
Thanks
London Dude,
So if the taxi is going to cost me around $50 I might as well pre book a nice car for $55, and have someone waiting for me, rather then having to wait in a queue?
Although the CTA might be a good options, costing next to nothing, and since I will not be in a massive hurry...