Air France and SNCF Voyageurs are expanding their collaboration to offer a combined train and air travel option called Train + Air. This service is now available on all OUIGO trains that stop at the Charles-de-Gaulle 2 TGV station, which connects to Paris-Charles-de-Gaulle Airport (CDG), Air France's primary hub. The expansion aims to improve rail access to the airport and make it easier for travelers to switch between train and flight services without needing to take a domestic flight to reach the airport. The Train + Air service was initially introduced on OUIGO trains connecting Aix-en-Provence, Avignon, and Marseille to the airport. Now, travelers can combine an OUIGO journey to or from CDG with an Air France flight—both international and connecting—within a single reservation. This development allows passengers to travel from more French regions to the Roissy hub using train services, reducing the need for domestic air travel to the airport. The Train + Air offering includes a single ticket covering both the train and the flight, with a digital itinerary and online check-in available on airfrance.fr up to 30 hours before departure (or 24 hours for flights to the U.S.). The service also includes protection against disruptions, such as delays or cancellations, which allows travelers to reschedule for free on the next available train or flight. This feature sets it apart from buying separate tickets, where passengers typically face the risk of missing a connection. Vincent Etchebehere, director of sustainable development and new mobility at Air France, emphasized that intermodal travel is a key part of the company’s strategy to reduce carbon emissions. He noted that the service offers customers a variety of schedules and a low-carbon, integrated solution to reach the airport hub. The expansion to OUIGO complements the existing TGV INOUI-based system, offering passengers an alternative pricing option for traveling to CDG. OUIGO trains serve over 70 destinations in France and Europe, including Bordeaux, Lyon, Marseille, and Toulouse, though not all of these cities have a direct connection to CDG. SNCF Voyageurs had previously aimed to connect 27 French stations to CDG through Train + Air by September 2026. The recent expansion to OUIGO services marks the completion of that goal. Jérôme Laffon, general director of OUIGO, said that combining the TGV INOUI and OUIGO networks meets a strong demand for simpler, more competitive travel options. Air France reported a 43% increase in Train + Air usage in the first half of 2026 compared to the same period in 2025, showing growing interest in combined journeys as airlines look to reduce reliance on short-haul flights when a viable rail alternative exists. The partnership between Air France and SNCF Voyageurs has existed for over 30 years. In addition to offering joint reservations, the two companies have also strengthened their commercial links. Since February 2025, members of Air France’s Flying Blue loyalty program can convert their miles into SNCF Voyageurs gift cards worth between 25 and 100 euros. The Train + Air service can be booked through Air France’s platforms and with partner travel agencies.