Superman is fast. But the Flash is just way faster. He is fast enough to travel faster than the speed of light. ... The ability to change the past and create time remnants would be the Flash's trump card in his fight with Superman.

Is Flash stronger than Superman?

The fact remains for that as fast as Superman may be, the Flash will always be faster, giving him a very distinct advantage over Superman, clearing a path for him to be more powerful.

Who would win Flash vs Superman?

Superman can run and think fast, he just doesn't come close to The Flash's top speed. In all instances of racing The Flash, Superman has never bested him, and throughout the entire history of DC comics, these two heroes have drawn twice. The Flash has bested Superman on two occasions so far.