The calculated distance (air line) between Homs and Jisr ash Shughūr is approximately 79 miles respectively 126 kilometers.
By car or train, the actual journey to Jisr ash Shughūr is certainly longer, as only the direct route (as the crow flies) between Homs and Jisr ash Shughūr has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles