The volatility and evaporation rate of aviation fuels impact combustion efficiency at some operating conditions as well as the jet-engine combustor operability, including ignition, lean blowout, and combustion dynamics. To help characterize the volatility of jet fuel, one experimental approach utilizes a one-plate atmospheric distillation (ASTM D86), while the other employs a close to infinite plate system in a gas chromatogram (GC) and the corresponding elution time of n-alkanes to simulate a distillation curve (ASTM D2887). The simulated distillation has been more repeatable historically, but with the advent of sustainable aviation fuels, the interpretation of this GC data and its correlation to the traditional one-plate approach are not clear. Here, we measured the one-plate (D86) and simulated (ASTM D2887) distillations of neat SAF candidates, their blends, and several conventional fuels. A total of 66 and 4 samples were measured in the simulated distillation and one-plate experiments, respectively. A simulated distillation curve blend rule is reported here as well as the impact of blending high concentrations of single components in HEFA. Significant disagreements between the calculation of D86 correlated data from D2887 data and the directly measured D86 data are discussed.