The calculated distance (air line) between Ar Raqqah and Khān Shaykhūn is approximately 137 miles respectively 220 kilometers.
By car or train, the actual journey to Khān Shaykhūn is certainly longer, as only the direct route (as the crow flies) between Ar Raqqah and Khān Shaykhūn has been calculated here.
Air line (approximately)
220 kilometers
119 nautical miles