The calculated distance (air line) between Sidi Bel Abbes and El Bayadh is approximately 140 miles respectively 226 kilometers.
By car or train, the actual journey to El Bayadh is certainly longer, as only the direct route (as the crow flies) between Sidi Bel Abbes and El Bayadh has been calculated here.
Air line (approximately)
226 kilometers
122 nautical miles