The calculated distance (air line) between Deir ez-Zor and Al-Tabqa is approximately 96 miles respectively 154 kilometers.
By car or train, the actual journey to Al-Tabqa is certainly longer, as only the direct route (as the crow flies) between Deir ez-Zor and Al-Tabqa has been calculated here.
Air line (approximately)
154 kilometers
83 nautical miles