The calculated distance (air line) between Vostochnyy and Yekaterinburg is approximately 142 miles respectively 228 kilometers.
By car or train, the actual journey to Yekaterinburg is certainly longer, as only the direct route (as the crow flies) between Vostochnyy and Yekaterinburg has been calculated here.
Air line (approximately)
228 kilometers
123 nautical miles