As of June 2015, the average price of Freon is $300 per 30-pound cylinder, which translates to about $10 per pound. The price of Freon is affected by demand and other market variables, so its price may fluctuate from week to week, according to Refrigerant HQ.
Among the provisions of the Clean Air Act is the phasing out of R22 as a refrigerant. R22 was deemed harmful to the environment because of its component that contributes to the depletion of the ozone layer, according to Cool Today. The phase-out began in January 2010 and will be completed by 2020. The price of Freon during this period is expected to go higher as the supply gradually becomes scarce.