The calculated distance (air line) between Deir Ḥannā and Ashdod is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to Ashdod is certainly longer, as only the direct route (as the crow flies) between Deir Ḥannā and Ashdod has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles