The aim of the present work is to compare hot corrosion behavior of Al2O3-TiO2 plasma spray coatings on Inconel 625 in air oxidation and molten salt environment K2SO4-60%NaCl environment at 800°C under cyclic conditions for 50 cycles. Al2O3-TiO2 coatings were deposited on Inconel 625 superalloy with plasma spray process. The thermo-gravimetric technique was used to establish the kinetics of corrosion. The corrosion products have been analyzed using the SEM and EDS analysis. The coating performed relatively better in air oxidation against hot corrosion in the molten salt environment.