Portet-sur-Garonne is a commune in the Haute-Garonne department in southwestern France. Portet-Saint-Simon station has rail connection…Portet-sur-Garonne is a commune in the Haute-Garonne department in southwestern France. Portet-Saint-Simon station has rail connections to Foix, Tarbes, and Toulouse, which is the nearest big city, about 10 km away.