The calculated distance (air line) between Mettuppālaiyam and Tirunelveli is approximately 177 miles respectively 284 kilometers.
By car or train, the actual journey to Tirunelveli is certainly longer, as only the direct route (as the crow flies) between Mettuppālaiyam and Tirunelveli has been calculated here.
Air line (approximately)
284 kilometers
153 nautical miles