How fast can the Flash run?

How fast can the Flash run? According to The Flash, Allen’s top speed is Mach 3.3, or 2,532 miles per hour. Barry is more than your average speed demon, too; by tapping into the Speed Force, an extra-dimensional energy source, he can move backwards and forwards in time and even across dimensions.

According to The Flash, Allen’s top speed is Mach 3.3, or 2,532 miles per hour. Barry is more than your average speed demon, too; by tapping into the Speed Force, an extra-dimensional energy source, he can move backwards and forwards in time and even across dimensions.