We attempt to reduce the reverse space-time nonlocal Nonlinear Schrödinger (NLS) equation to a family of nonlocal Korteweg–de Vries (KdV) equations using the multiple-scale method. This approach offers an alternative pathway for constructing nonlocal equations besides the perspectives of integrability and coupled equation systems. In the present formulation, the constructed equations possess only -symmetric invariant solutions. Furthermore, these particular nonlocal KdV solitons can serve as approximate representations of the symmetric invariant solutions of the small-amplitude nonlocal NLS equation.