The calculated distance (air line) between 20-solagii Istiḳlolijati Toçikiston and Dushanbe is approximately 70 miles respectively 113 kilometers.
By car or train, the actual journey to Dushanbe is certainly longer, as only the direct route (as the crow flies) between 20-solagii Istiḳlolijati Toçikiston and Dushanbe has been calculated here.
Air line (approximately)
113 kilometers
61 nautical miles