Thank you very much. My plan is to fly to Chicago and from there by AMTRACK to Galesburg. But you can do one thing for me. Ask in AMTRACK if is necessary to buy train ticket in advance (I would have to do it thru internet), or if is einough to come and buy it before I will go straight on the station. Because I don´t know exactly what time I will be in the city and how fast I´ll get to railroad station rom airport. Here trains are not so crowded, so is einough when you want to go by train to come, to buy and to go. One way trip to Galesbug costs $20, and it is cheaper and faster than by Greyhound. If someone will go from Chicago area - that´s good, but for me is not a problem to travel by train.
As soon as I´ll get air ticket I´ll know details. If I´ll be happy, I can pay $750 for round trip Prague - Chicago - Prague.