<Tr> <Th> Preceding station </Th> <Th> </Th> <Th> Metra </Th> <Th> </Th> <Th> Following station </Th> </Tr> <Tr> <Td> Prospect Heights toward Antioch </Td> <Td> </Td> <Td> North Central Service </Td> <Td> </Td> <Td> Rosemont toward Chicago Union Station </Td> </Tr> <P> O'Hare Transfer is a commuter railroad station along Metra's North Central Service that serves Chicago's O'Hare International Airport . The station is 18.6 miles (29.9 km) away from Union Station, the southern terminus of the line . The station is located at the dead end of Zemke Boulevard east of Mannheim Road (US 12 / US 45) outside the northeast corner of Economy Parking Lot F . </P> <P> Owing to the limited frequency offered by the North Central Service, the station is not currently a significant means of access for travelers to O'Hare . However, a single outbound North Central Service train operates daily nonstop service from Union Station to the O'Hare Transfer station with a scheduled 27 - minute travel time . </P>

How far is union station from ohare airport