What is the cheapest way for getting to Chicago from NYC?|195746

Please, this is very important to me and there is so much things on the internet, I am not sure what is what and what is the best choice. So please write as much details as you can!

Thanks!

Jet Blu has 2 flights from ORD to JFK at $87.00 and 5 others that are more expensive:


http://www.jetblueairways.com/cgi-bin/sk��


After 6/28 Southwest has 2 flights from MDW to LGA for $89.00 and 3 others for $109.00:


http://www.southwest.com/


Greyhound has several buses that take between 22 and 23 1/2 hrs for the trip at $97.00...non refundable:


http://www.greyhound.com/home/ticketcent��


Amtrak has 2 trains for $106.00 and 3 other ones that are more expensive. Average time to Penn Station..27 hrs:


http://tickets.amtrak.com/itd/amtrak/Far��