Metra | Amtrak | Airport Express | High-Speed Rail
Amtrak regional trains link over 50 cities to O'Hare, most of which have no air service at all. In others, Amtrak is more frequent than existing feeder flights.
Extending those trains through Union Station to O'Hare would create a more convenient and productive way to access long-distance flights at O'Hare. Just as importantly, the station would give Northwest suburban residents better access to Amtrak.