The calculated distance (air line) between Ulyanovsk and Novocheboksarsk is approximately 128 miles respectively 206 kilometers.
By car or train, the actual journey to Novocheboksarsk is certainly longer, as only the direct route (as the crow flies) between Ulyanovsk and Novocheboksarsk has been calculated here.
Air line (approximately)
206 kilometers
111 nautical miles