CDG · airport to city
The key 2026 change is that RoissyBus should no longer appear in your plan: the service ended on 1 March. For most travellers, the real choice is between the €14 RER B airport ticket, an official taxi with a fixed Paris fare, and a smaller set of bus links that make sense only for certain routes.
Quick decision
SituationCheck firstWhy1–2 people, hotel near RER/metroRER B€14 per person with a direct rail link into Paris and useful interchange stations.3–4 people with heavy luggageCompare an official taxiThe flat fare is per car, not per passenger, so the gap can become small.Late arrival, small children or limited mobilityOfficial taxiDoor-to-door travel without stairs, transfers or dragging bags through stations.Address that suits bus 350/351 or Express 9517BusPotentially very cheap, but only if the route and terminus are convenient.An old guide recommends RoissyBusIgnore that adviceRoissyBus stopped operating on 1 March 2026.
RER B: the default choice for many independent travellers
From 1 January 2026, the Paris Region ↔ Airports ticket costs €14 one way and covers RER B travel between Charles de Gaulle and Paris. Île-de-France Mobilités lists a €7 reduced fare for eligible passengers. The ticket can be loaded onto Navigo Easy or a compatible phone.
RER B serves the CDG terminals and runs through major Paris interchange points including Gare du Nord, Châtelet–Les Halles and Denfert-Rochereau. Official guidance lists trains roughly every 6 to 15 minutes, depending on the time and direction.
The strongest advantage is the predictable price. Two adults pay €28 in total, usually well below an official taxi. The trade-off is convenience: if your hotel requires two extra transfers, stairs and a long walk with suitcases, the cheapest fare may no longer be the best overall choice.
Official taxi: the maths changes for groups
French official taxi information lists fixed direct fares between CDG and Paris: €56 to the Right Bank and €65 to the Left Bank. These are per ride rather than per passenger.
That matters for a group of four. Four RER B airport tickets cost €56 before any extra metro journey or difficult last-mile walk. In that situation, an official taxi to the door can be entirely rational, especially with large bags, children or after a long-haul flight.
Use the official taxi rank at the terminal. Do not accept unsolicited rides from people approaching passengers inside arrivals. Compare the regulated flat fare with public transport for the whole group.
RoissyBus is no longer an option in 2026
This is the easiest detail to miss when reading an older blog or guidebook. Île-de-France Mobilités formally announced the end of RoissyBus, with the service stopping on 1 March 2026.
If an itinerary still tells you to take “CDG → Opéra by RoissyBus”, check the publication date. That route recommendation is outdated in 2026.
What about buses 350, 351 and Express 9517?
RATP still lists buses 350 and 351 for CDG. They use the Bus-Tram fare, which is €2.05 in 2026, with separate on-board/SMS conditions where available. This can be extremely cheap, but the journey is slower and often less practical for a visitor heading to a central hotel.
Express 9517 also links Saint-Denis–Pleyel with CDG. RATP publishes daily operation roughly from 5:20 a.m. to 12:30 a.m., with frequency varying by time and day. It is most interesting if you are already in northern Paris or have a convenient connection to Saint-Denis–Pleyel.
How to decide in 30 seconds
- Check your hotel address. If Gare du Nord, Châtelet or an easy RER B interchange works well, start with the train.
- Multiply €14 by the number of travellers. With three or four people, compare the result with the €56/€65 official taxi fare.
- Add luggage and transfers. Those can matter more than a €10–15 difference.
- Check RER B engineering work for your travel date. The line has scheduled closures and restrictions from time to time.
- Do not plan around RoissyBus. Replace any old itinerary that still mentions it.
Our practical rule
Solo traveller or couple: RER B is the natural starting point. Three or four people: always price the official taxi because the per-person difference shrinks. Heavy luggage, children or an address far from a useful station: taxi wins on convenience. Budget first and the route fits: look at 350/351 or Express 9517.
Bottom line
There is no single best CDG transfer in 2026. RER B offers the strongest value for many independent travellers, an official taxi becomes competitive for groups, and buses are a route-specific budget option. The most important update is to ignore old RoissyBus advice and check RER B works shortly before travelling.
