Airports 501 to 550
Chicago O'Hare International Airport
Advocate Good Samaritan Hospital Heliport
Bolingbrook's Clow International Airport
Illinois Valley Regional Airport Walter A Duncan Field
Advocate Lutheran General Hospital Helipad
Ottawa Airport / Skydive Chicago Airfield
Saint Elizabeth Medical Center-Peru Helistop
Jonathan and Julianne Mabry Heliport
UChicago Medicine AdventHealth Bolingbrook Hospital Heliport