The calculated distance (air line) between Tébessa and Oum el Bouaghi is approximately 65 miles respectively 105 kilometers.
By car or train, the actual journey to Oum el Bouaghi is certainly longer, as only the direct route (as the crow flies) between Tébessa and Oum el Bouaghi has been calculated here.
Air line (approximately)
105 kilometers
57 nautical miles