Airports 501 to 550
Penn Highlands Clearfield Heliport
Montgomery County Police Norwood Heliport
Walter Reed National Medical Center Heliport
Clearfield Lawrence Airport
Pittsburgh International Airport
Sibley Memorial Hospital Heliport
Washington, District of Columbia, United States — 160 km (86 nm) ESE
Steuart Office Pad Heliport
Washington, District of Columbia, United States — 160 km (86 nm) ESE