The Wikipedia article [0] has a nice animation [1] of the trajectory through the inner solar system, sourced from this [2] 3D interactive viewer (press “Plot Object” and then drag the slider below “Change Time Speed”).
[0] https://en.wikipedia.org/wiki/3I/ATLAS
[1] https://en.wikipedia.org/wiki/3I/ATLAS#/media/File%3A3I_ATLA...
