The calculated distance (air line) between Sukheke Mandi and Nankana Sahib is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Nankana Sahib is certainly longer, as only the direct route (as the crow flies) between Sukheke Mandi and Nankana Sahib has been calculated here.
Air line (approximately)
50 kilometers
27 nautical miles