Kombo and SNCF Connect are two websites approved by the SNCF, selling SNCF train tickets. Thus, Kombo is an official website for selling train tickets, like SNCF Connect.
SNCF Connect is a subsidiary of SNCF, dedicated to online distribution, or in other words, to the sale of train tickets on the Internet. Thus, SNCF is a train operator that takes care of the transportation of passengers. And like Kombo, SNCF Connect only sells SNCF train tickets on its website.
The French Competition Authority ensures that competition is healthy and fair, and that SNCF Connect is not favoured by its parent company, SNCF, over sites like Kombo. Like SNCF Connect, Kombo also offers an iOS app and an Android app.
Oui sncf changed its name in 2022 to SNCF Connect. Compared to Oui SNCF, SNCF Connect additionally offers information on commuter trains and urban transport such as metro, RER, buses, scooters, taxis or VTCs like Uber.
Yes, Kombo allows you to have cheaper prices than SNCF Connect. Why? Essentially for 3 reasons.
Kombo allows you to book plane, bus and carpooling tickets, in addition to train tickets, which SNCF Connect does not allow.
As far as train features are concerned, Kombo offers, like SNCF Connect, SNCF Advantage cards, ticket cancellation, ticket exchange and seat selection.
Kombo goes even further by offering automatic reimbursement in case of train delays, the invoice available in 1 click, or the exchange of a train ticket for a bus or plane ticket.
Like Kombo, SNCF Connect offers TGV, Inoui, Ouigo, TER, Intercités, Eurostar, Thalys or Lyria but also night trains. But Kombo also offers Flixbus, Blablacar buses, and tickets from Air France, Easyjet, Transavia, Ryanair and most airlines.
While SNCF Connect offers all French destinations, Kombo offers many more destinations abroad, whether by train, bus or plane.