Alaska and Hawaii. If you go to the mainland, then California, Oregon, and Washington are the closest.
The nearest airports to Washington, DC are Reagan International Airport (DCA) which is right near town and Dulles Airport (IAD) which is west of town but is the major international airport for the area.
The nearest airport with scheduled service is Seattle/Tacoma International Airport (SEA).
The closest major airport to Norfolk International Airport (ORF) is Newport News/Williamsburg International Airport (PHF / KPHF). This airport is in Newport News, Virginia and is about 29 road miles from ORF.
Ronald Reagan Washington National Airport (DCA) Washington Dulles International Airport (IAD) Thurgood Marshall Baltimore/Washington International Airport (BWI)
The nearest major airport is Ronald Reagan Washington National Airport (DCA / KDCA). This airport has international and domestic flights from Washington, District of Columbia and is about 13 road miles from the center of Springfield, VA.
While none of them are actually located inside the city, the Washington DC major airports are Ronald Reagan National Airport (DCA), Dulles International Airport (IAD) and Baltimore-Washington International Airport (BWI). Reagan is the closest to Washington, with a Metro station on-site.
Portland International Airport is the closest commercial airport but there is a small plane airport called Mount Saint Helens Aero Ranch Airport in Cougar, Washington.
The closest major airport is Washington Dulles International Airport (IAD). It has international and domestic flights from Dulles, Virginia and is 65 driving miles from Hagerstown.
The closest major airport to Salisbury, Maryland is Salisbury-Ocean City Wicomico Regional Airport (SBY / KSBY). This airport is about 7 driving miles from the center of Salisbury.
The nearest major airport is Ronald Reagan Washington National Airport (DCA / KDCA). This airport has international and domestic flights from Washington, District of Columbia and is about 12 driving miles distance from the center of Cheverly.
The closest major airport is Baltimore / Washington International Thurgood Marshall Airport at about 16 miles away.