The calculated distance (air line) between Jisr ash Shughūr and As Safīrah is approximately 62 miles respectively 99 kilometers.
By car or train, the actual journey to As Safīrah is certainly longer, as only the direct route (as the crow flies) between Jisr ash Shughūr and As Safīrah has been calculated here.
Air line (approximately)
99 kilometers
54 nautical miles