The calculated distance (air line) between Rēzekne and Aizkraukle is approximately 80 miles respectively 128 kilometers.
By car or train, the actual journey to Aizkraukle is certainly longer, as only the direct route (as the crow flies) between Rēzekne and Aizkraukle has been calculated here.
Air line (approximately)
128 kilometers
69 nautical miles