The calculated distance (air line) between Ursynów and Piekary Śląskie is approximately 153 miles respectively 246 kilometers.
By car or train, the actual journey to Piekary Śląskie is certainly longer, as only the direct route (as the crow flies) between Ursynów and Piekary Śląskie has been calculated here.
Air line (approximately)
246 kilometers
133 nautical miles