The calculated distance (air line) between Newcastle upon Tyne and Seaton Delaval is approximately 8 miles respectively 12 kilometers.
By car or train, the actual journey to Seaton Delaval is certainly longer, as only the direct route (as the crow flies) between Newcastle upon Tyne and Seaton Delaval has been calculated here.
Air line (approximately)
12 kilometers
7 nautical miles