The calculated distance (air line) between Osh and Bazar-Korgon is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Bazar-Korgon is certainly longer, as only the direct route (as the crow flies) between Osh and Bazar-Korgon has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles