The deal, which includes two test vehicles, parts, training and logistical support is worth about $255 million.
"The proposed sale will contribute to the foreign policy and national security of the United States by improving the security of a partner nation that remains an important force for political stability and economic progress in Europe," the U.S. Defense Security Cooperation Agency said.
Finland intends to integrate the JASSM, which is manufactured by Lockheed Martin, on its F/A-18C/D aircraft.
"Finland's acquisition of JASSM is intended to modernize its current aircraft munitions suite and counter potential threats. This will contribute to the Finnish military's goal of updating its capability," the agency said.
The prime contractor will be Lockheed Martin Industries in Tampa, Fla. There are no known offset agreements proposed in connection with the potential sale.
Implementation of this proposed sale won't require the assignment of additional U.S. government or contractor representatives to Finland.