The calculated distance (air line) between Paro and Samdrup Jongkhar is approximately 136 miles respectively 219 kilometers.
By car or train, the actual journey to Samdrup Jongkhar is certainly longer, as only the direct route (as the crow flies) between Paro and Samdrup Jongkhar has been calculated here.
Air line (approximately)
219 kilometers
118 nautical miles