The calculated distance (air line) between Ille-sur-Têt and Trèbes is approximately 38 miles respectively 62 kilometers.
By car or train, the actual journey to Trèbes is certainly longer, as only the direct route (as the crow flies) between Ille-sur-Têt and Trèbes has been calculated here.
Air line (approximately)
62 kilometers
33 nautical miles