Mix flour, sugar, baking powder and salt in a large bowl.
Add eggs, milk, melted butter, mashed bananas, cinnamon and vanilla. Stir until well blended and smooth.
Gently fold in the blueberries.
Spoon 1/8-1/4 cup of batter for each pancake on preheated, greased griddle or skillet.
Once bubbling throughout on surface, turn over and cook until done.