A method is provided for producing vinyl chloride monomer from methyl chloride and methylene chloride. In the method, methyl chloride is reacted with methylene chloride in the vapor phase in the presence of a catalyst to produce vinyl chloride and hydrogen chloride. The reaction temperature is in the range of from about 300.degree. C. to 500.degree. C. The catalyst is selected from the group alumina gel, gamma-alumina, zinc chloride on active alumina, silica-alumina, zeolite, and silicon-aluminum-phosphorus oxide.