The calculated distance (air line) between H̱atsor HaGelilit and Jaffa is approximately 79 miles respectively 127 kilometers.
By car or train, the actual journey to Jaffa is certainly longer, as only the direct route (as the crow flies) between H̱atsor HaGelilit and Jaffa has been calculated here.
Air line (approximately)
127 kilometers
69 nautical miles