The calculated distance (air line) between Saint-Julien-de-Concelles and Bordeaux is approximately 171 miles respectively 275 kilometers.
By car or train, the actual journey to Bordeaux is certainly longer, as only the direct route (as the crow flies) between Saint-Julien-de-Concelles and Bordeaux has been calculated here.
Air line (approximately)
275 kilometers
149 nautical miles