The calculated distance (air line) between Lidzbark Warmiński and Bydgoszcz is approximately 126 miles respectively 203 kilometers.
By car or train, the actual journey to Bydgoszcz is certainly longer, as only the direct route (as the crow flies) between Lidzbark Warmiński and Bydgoszcz has been calculated here.
Air line (approximately)
203 kilometers
110 nautical miles