I am planning an Amtrak trip this summer but do some time restraints, I will need to fly for a portion of the trip. I will need to go from Chicago Union Station to Chicago O'Hare Airport. Who has done this before and what do you recommend? I know CTA operates a light rail train that goes to the airport and the closest stop is a few blocks from Union Station. I'm worried I will look like a tourist because I will have 2 good-sized luggage. I will look like prime robbery prey! Also how do I get to the CTA stop with 2 good-sized luggage? I see there is a shuttle service but it's costly and Uber is almost as costly. Is CTA safe? Is shuttle service and Uber worth the cost?