  We study the separation of AdS and Kaluza-Klein (KK) scales in type II 4d AdS
orientifold vacua. We first address this problem in toroidal/orbifold type IIA
vacua with metric fluxes, corresponding to compactifications in twisted tori,
both from the 4d and 10d points of view. We show how the naive application of
the effective 4d theory leads to results which violate the AdS distance
conjecture, in a class of $\mathcal{N}=1$ supersymmetric models which have a
10d lifting to a compactification on $S^3\times S^3$. We show how using KK
scales properly modified by the compact metric leads to no separation of scales
with $M^2_{\text{KK}} = \mathfrak{c} |\Lambda|$, with $\mathfrak{c}$ a
numerical constant independent of fluxes. This applies with no need to keep
non-leading fluxes fixed. We also consider a class of IIB models with
non-geometric fluxes in which the effective field theory analysisseems to lead
to a naive separation of scales and a violation of the AdS distance conjecture.
It has a T-dual which again may be understood as a 10d type IIA theory
compactified on $S^3\times S^3$. In this geometric dual one again observes that
the strong AdS distance conjecture is obeyed with $M^2_{\text{KK}} =
\mathfrak{c}' |\Lambda|$, if one takes into account the curvature in the
internal space. These findings seem to suggest that all toroidal/orbifold
models with fluxes in this class obey $M^2_{\text{KK}} = \mathfrak{c}
|\Lambda|$ with $\mathfrak{c}$ a flux-independent numerical constant.
