Considered the "backbone" of the Grand Paris Express, line 14 has now been extended to the north and south. As of Monday June 24, 2024, line 14 links Orly airport to Saint-Denis Pleyel in 40 minutes. Communes served, new stations and stations, connections... here's everything you need to know about the extension of this famous line 14 in Paris and the Île-de-France region.