Spacetime is hyperbolic. Considering time dilation, that speed is instantaneous if you were riding that photon sans mass*.

Here's a comment from a few years ago and its parent with a better worded answer: https://www.reddit.com/r/askscience/comments/n3qgk/if_light_travels_from_one_point_to_another/c361txy/. If you were riding the photon you'd think you teleported but someone on earth you have measured you going at the speed of light.