The calculated distance (air line) between Shahbā and Khān Shaykhūn is approximately 179 miles respectively 288 kilometers.
By car or train, the actual journey to Khān Shaykhūn is certainly longer, as only the direct route (as the crow flies) between Shahbā and Khān Shaykhūn has been calculated here.
Air line (approximately)
288 kilometers
155 nautical miles