The calculated distance (air line) between Trà Vinh and Dương Đông is approximately 163 miles respectively 263 kilometers.
By car or train, the actual journey to Dương Đông is certainly longer, as only the direct route (as the crow flies) between Trà Vinh and Dương Đông has been calculated here.
Air line (approximately)
263 kilometers
142 nautical miles