The calculated distance (air line) between Nowy Dwór Mazowiecki and Praga Południe is approximately 20 miles respectively 33 kilometers.
By car or train, the actual journey to Praga Południe is certainly longer, as only the direct route (as the crow flies) between Nowy Dwór Mazowiecki and Praga Południe has been calculated here.
Air line (approximately)
33 kilometers
18 nautical miles