The union Unite said its members employed by ground handler Red Handling and passenger assistance firm Wilson James called off a walkout scheduled for 25-28 August after accepting 14% and 16% pay increases respectively.
Staff at Red Handling have also received improved overtime rates and better sick pay, while those working for Wilson James are still in talks over better sick pay.
“This is a tremendous achievement – Unite has coordinated industrial disputes across Gatwick to secure well deserved pay increases for its members,” said Unite general secretary Sharon Graham.