Niles is just North East of the airport. You can take the PACE bus down to Jefferson Street station and get in the blue line that will take you directly into the airport. Or, you can drive to employee parking, which takes about 15-20 min.
Or, you could look at Edison park, Jefferson park, park ridge. They’re all just north or east of the airport. Pretty easy to use public transport or be able to drive to the airport.