Airports 451 to 500
A.H. Butz Downtown Allentown Heliport
Franklin Square Hospital Center Heliport
Trenton Mercer Airport
Ewing Township, New Jersey, United States — 88 km (47 nm) ENE
Agere Systems-Lehigh Valley Central Campus Heliport
Wellspan York Hospital Alternate Heliport
Farmers Pride Airport
Fredericksburg, Pennsylvania, United States — 90 km (49 nm) NW