The calculated distance (air line) between Ma‘ale Adummim and Bayt Lāhyā is approximately 50 miles respectively 80 kilometers.
By car or train, the actual journey to Bayt Lāhyā is certainly longer, as only the direct route (as the crow flies) between Ma‘ale Adummim and Bayt Lāhyā has been calculated here.
Air line (approximately)
80 kilometers
43 nautical miles