An approximate numerical solution for the Dufour and Soret effects of a transient free convective flow with radiative heat transfer past a flat plate moving through a binary mixture for a Sisko fluid has been obtained by solving the governing equations using numerical technique. Numerical calculations are carried out for different values of dimensionless parameters and an analysis of the results obtained shows that the flow is influenced appreciably by the chemical reaction, heat source and suction or injection at the wall and also the influence of Dufour and Soret in Sisko fluid. A parametric study illustrating the influence of H and m on the skin friction, Nusselt number, and Sherwood number is conducted. The obtained results are presented graphically and in tabular form and physical aspects of the problem are discussed
