Considered the "backbone" of the Grand Paris Express, line 14 will soon be extended to the north and south. In June 2024, the extension of line 14 will link Orly airport to Saint-Denis Pleyel in 40 minutes. Here's everything you need to know about the extension of line 14 in Paris and the Île-de-France region: opening date, communes served, new stations and stations, and future connections.