The calculated distance (air line) between Strelka and Primorsko-Akhtarsk is approximately 72 miles respectively 117 kilometers.
By car or train, the actual journey to Primorsko-Akhtarsk is certainly longer, as only the direct route (as the crow flies) between Strelka and Primorsko-Akhtarsk has been calculated here.
Air line (approximately)
117 kilometers
63 nautical miles