OUIGO is a brand of SNCF for affordable train travel. Since 2013, TGV trains have been operating under this brand at low prices, initially between Marne-la-Vallée (near Paris) and the southeast of France. Since then, the network has been further expanded, so that by the end of 2020, a total of 41 stations across France were served. In May 2021, high-speed connections under the OUIGO brand also began operating in neighboring Spain.