The calculated distance (air line) between Saint-Étienne-de-Montluc and Angers is approximately 59 miles respectively 95 kilometers.
By car or train, the actual journey to Angers is certainly longer, as only the direct route (as the crow flies) between Saint-Étienne-de-Montluc and Angers has been calculated here.
Air line (approximately)
95 kilometers
51 nautical miles