The national average for a gallon of Jet-A fuel in December decreased 7 cents from November average prices to $5.80, according to a fuel survey report by the Argus Research Group.

All eight regions of the U.S. saw monthly declines in pricing, although costs are up for the ninth straight month when compared to a year ago. December prices are up 84 cents from December 2020. The Eastern region of the country retains its spot as the most expensive region with fuel averaging $6.47 a gallon.