The calculated distance (air line) between Al Qaryatayn and ‘Afrīn is approximately 159 miles respectively 256 kilometers.
By car or train, the actual journey to ‘Afrīn is certainly longer, as only the direct route (as the crow flies) between Al Qaryatayn and ‘Afrīn has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles