The calculated distance (air line) between Savannakhet and Sawang Wirawong is approximately 94 miles respectively 152 kilometers.
By car or train, the actual journey to Sawang Wirawong is certainly longer, as only the direct route (as the crow flies) between Savannakhet and Sawang Wirawong has been calculated here.
Air line (approximately)
152 kilometers
82 nautical miles