The calculated distance (air line) between Ujeścisko-Łostowice and Mokotów is approximately 178 miles respectively 287 kilometers.
By car or train, the actual journey to Mokotów is certainly longer, as only the direct route (as the crow flies) between Ujeścisko-Łostowice and Mokotów has been calculated here.
Air line (approximately)
287 kilometers
155 nautical miles