The calculated distance (air line) between Janów Lubelski and Praga Południe is approximately 121 miles respectively 194 kilometers.
By car or train, the actual journey to Praga Południe is certainly longer, as only the direct route (as the crow flies) between Janów Lubelski and Praga Południe has been calculated here.
Air line (approximately)
194 kilometers
105 nautical miles