The calculated distance (air line) between Sępólno Krajeńskie and Praga Południe is approximately 170 miles respectively 274 kilometers.
By car or train, the actual journey to Praga Południe is certainly longer, as only the direct route (as the crow flies) between Sępólno Krajeńskie and Praga Południe has been calculated here.
Air line (approximately)
274 kilometers
148 nautical miles