The calculated distance (air line) between Poltava and Horishni Plavni is approximately 58 miles respectively 93 kilometers.
By car or train, the actual journey to Horishni Plavni is certainly longer, as only the direct route (as the crow flies) between Poltava and Horishni Plavni has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles