Question: can you see oahu from haleakala?
Answer: This is far enough to be seen by Molokai and almost lanai. But, the summit is on the opposite side of oahu, so I ran the calculation with a closer point. The closest point on oahu is still 66 miles from Maui, and that's at sea level. ... curvature of the Earth makes it impossible to see Oahu from Maui.