The invention relates to the use of polymers which comprise, in copolymerized form, an α-olefin, an alkenyl ester of a carboxylic acid and an ester of an α,β-unsaturated carboxylic acid as an additive for turbine fuels and in particular as a cold flow improver for turbine fuels, to the turbine fuels additized with these polymers, and to additive packets comprising such copolymers.