UHECR flux (in arbitrary units) due to all sources that lie at a distance d from the Galactic center is plotted against d, assuming that the sources are distributed in proportion to the star formation rate (Equation (7)). In the top panel, λ _mfp = r _L and in the bottom panel, λ _mfp = 3 r _L . Solid (green), dashed (red), and dotted (blue) curves are for the GMF configurations MF1, MF2, and MF3, respectively, in each panel. Here and henceforth, energy is 2.4 EeV. Drift as well as faster diffusion in the halo leads to faster escape of UHECRs, extenuating the contribution of distant sources to the observed UHECR flux.