The calculated distance (air line) between Palenque and Santo Domingo de los Colorados is approximately 91 miles respectively 147 kilometers.
By car or train, the actual journey to Santo Domingo de los Colorados is certainly longer, as only the direct route (as the crow flies) between Palenque and Santo Domingo de los Colorados has been calculated here.
Air line (approximately)
147 kilometers
79 nautical miles