The calculated distance (air line) between Tīra Sujānpur and Gorakhpur is approximately 172 miles respectively 277 kilometers.
By car or train, the actual journey to Gorakhpur is certainly longer, as only the direct route (as the crow flies) between Tīra Sujānpur and Gorakhpur has been calculated here.
Air line (approximately)
277 kilometers
149 nautical miles