The calculated distance (air line) between Aţ Ţafīlah and Zarqa is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Zarqa is certainly longer, as only the direct route (as the crow flies) between Aţ Ţafīlah and Zarqa has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles