Quick Answer
RoissyBus permanently stopped on 1 March 2026, and there is no direct replacement from Opéra to Charles de Gaulle Airport.
For most travellers, the RER B remains the fastest public option at €14. The cheapest practical public-transport alternative from central Paris is often Metro Line 14 to Saint-Denis–Pleyel plus express bus 9517: €2.55 for the metro and €2.05 for the bus, or about €4.60 total when both tickets are bought in advance. A fixed-fare taxi costs €56 to the Right Bank or €65 to the Left Bank for a standard direct trip.
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| Item | 2026 detail |
|---|---|
| RoissyBus | Permanently discontinued on 1 March 2026 |
| Direct Opéra replacement | None |
| Fastest mainstream public option | RER B, €14 |
| RER B frequency | About every 6–15 minutes, subject to works |
| Low-cost alternative | Metro Line 14 + bus 9517, about €4.60 with advance tickets |
| Bus 9517 from Saint-Denis–Pleyel | About 45 minutes to Roissypôle |
| Bus 9517 hours | About 5:10 am–12:30 am daily |
| Fixed-fare taxi | €56 Right Bank / €65 Left Bank |
| CDG Express | Planned to open 28 March 2027; €25 standard one way |
| Facts checked | 2 August 2026 |
What happened to RoissyBus?
RoissyBus ran for 34 years between CDG and Opéra. It stopped for good on 1 March 2026 (last service 28 February). The reasons were constant traffic on the A1 motorway, which made arrival times unreliable, and a new plan to route airport traffic through the Saint-Denis-Pleyel transport hub.
There is no direct bus from Opéra to CDG anymore. If a guide, video or blog still tells you to take RoissyBus, it is out of date. For routes from the other major airport, see Orly Airport to Paris.
Your options from CDG in 2026
1. RER B train — best for most people
The RER B (a regional express train) runs directly from CDG into the centre of Paris.
- Cost: a flat €14 with the "Paris Région ↔ Aéroports" ticket. This single ticket also lets you continue onto the metro to your final station, because rail-to-rail transfers are allowed for 2 hours — so you usually do not buy a second ticket.
- Time: about 25–30 minutes to Gare du Nord, a little more to Châtelet–Les Halles and Saint-Michel–Notre-Dame.
- Frequency: roughly every 10–15 minutes.
- Hours: from CDG towards Paris, roughly 4:50 am to 11:50 pm.
- How to buy: at the airport station machines, or in advance in the Bonjour RATP or Île-de-France Mobilités app; load it onto a Navigo Easy card or your phone. If you already hold a Navigo weekly or monthly pass covering all zones, you need no extra ticket.
Watch your bags. The RER B from CDG is a known target for pickpockets. Keep your passport, phone and cash in a front pocket, and stay alert when the doors open. For how the airport ticket works, see Paris metro tickets.
2. Taxi at the fixed fare — best with luggage or a group
Official Paris taxis charge a fixed price by law between CDG and central Paris: about €56 to the Right Bank (north of the Seine) and €65 to the Left Bank (south). The price is per taxi for up to four passengers, not per person, so a family or group often pays less than four train tickets — and travels door to door.
- Use only the official taxi queue outside the terminal. Ignore anyone who approaches you inside the building offering a ride; those are usually unofficial and far more expensive.
- The fixed fare has no meter and no surcharge surprises for a standard central-Paris trip.
3. Metro Line 14 + bus 9517 — cheapest useful replacement
Express bus 9517 runs between Saint-Denis–Pleyel and Roissypôle at CDG, continuing to Argenteuil in the other direction. It does not go to Opéra or central Paris, so most visitors first take Metro Line 14 to Saint-Denis–Pleyel.
- Bus fare: €2.05 with a Bus-Tram ticket on Navigo Easy or a phone; €2.55 with an eligible boarding ticket.
- Metro fare: €2.55 from central Paris to Saint-Denis–Pleyel.
- Typical total: €4.60 with advance tickets, or €5.10 if the bus ticket is bought on board/SMS.
- Time: about 45 minutes from Saint-Denis–Pleyel to Roissypôle; allow roughly 55–75 minutes from central Paris including the metro and transfer.
- Hours: approximately 5:10 am to 12:30 am daily.
This is much cheaper than the RER B, but it requires a transfer and is less convenient with heavy luggage.
4. Private transfer — door-to-door comfort
A pre-booked private transfer can make sense for a larger group, bulky luggage, mobility needs or an arrival outside rail hours. Prices vary considerably by provider, vehicle and booking conditions, so compare the total price with the official fixed taxi fare before paying.
5. Buses 350 and 351 — cheap but slow
RATP buses 350 and 351 connect CDG with the north and east of Paris. They cost €2.05 with a Bus-Tram ticket or €2.55 with an eligible boarding/SMS ticket, but they stop frequently and can take 60–90 minutes or longer in traffic. They suit travellers with a tight budget and light luggage.
Compare the CDG options
| Option | Approx. time | Cost | Best for |
|---|---|---|---|
| RER B | ~30–40 min to central stations | €14 | Fastest public route for most travellers |
| Line 14 + bus 9517 | ~55–75 min | ~€4.60 | Lowest-cost practical route with one transfer |
| Taxi | ~40–70 min | €56 / €65 per car | Groups, luggage, late arrivals |
| Private transfer | Varies | Provider-dependent | Pre-booked assistance or special needs |
| Bus 350 / 351 | ~60–90+ min | €2.05–€2.55 | Lowest price, plenty of time |
For a full neutral comparison of all CDG routes, see CDG Airport to Paris.
Which should you choose?
- Fastest public journey: RER B for €14.
- Cheapest useful route from central Paris: Line 14 + bus 9517 for about €4.60.
- Three or four people with luggage: compare the €56/€65 taxi fare with the total rail cost.
- After the RER B stops: taxi, private transfer, 9517 if its timetable and your route still work, or a Noctilien night bus.
- An unused RoissyBus ticket: check the IDFM refund procedure rather than trying to validate it.
Late-night and early-morning arrivals
The RER B from CDG stops around 11:50 pm and restarts before 5:00 am. If you land in that window:
- A taxi at the fixed fare is the simplest choice.
- A pre-booked transfer is a good alternative.
- Noctilien night buses serve CDG for budget travellers, but they are slow and involve a transfer — confirm the current lines and times before you rely on them.
Note that in 2026 there are night-time engineering works on the RER B north line on some weekday evenings. Check live times in the SNCF Connect or RATP app before a late trip.
Common mistakes
- Looking for RoissyBus at Opéra. It ended permanently on 1 March 2026.
- Thinking bus 9517 is another direct Opéra shuttle. It starts from Saint-Denis–Pleyel for most Paris visitors.
- Overpaying for 9517. The bus itself costs €2.05 with a Bus-Tram ticket; Line 14 + 9517 is about €4.60 total.
- Using a normal €2.55 rail ticket for RER B airport stations. CDG requires the €14 airport ticket.
- Taking a taxi offered inside the terminal. Use the official taxi queue.
- Ignoring planned RER B works. Check the live route shortly before travel.
Conclusion
After RoissyBus, there is no single direct replacement from Opéra. Choose the RER B when speed matters, Line 14 + bus 9517 when price matters, and an official fixed-fare taxi when luggage, group size or the arrival time makes public transport awkward. The 9517 route is a genuine budget option at about €4.60 from central Paris — not a €15–18 airport coach.
FAQ
Is RoissyBus still running?
No. It permanently ended on 1 March 2026.
What replaced RoissyBus from Opéra?
There is no direct Opéra replacement. The main choices are RER B, Line 14 + bus 9517, taxi or transfer.
How much does Line 14 + bus 9517 cost?
About €4.60 with a €2.55 Metro-Train-RER ticket and a €2.05 Bus-Tram ticket. Buying the bus ticket on board/SMS raises the total to about €5.10.
How long does bus 9517 take?
About 45 minutes between Saint-Denis–Pleyel and Roissypôle, plus the metro journey and transfer from central Paris.
How much is a taxi from CDG to Paris?
The official fixed fare is €56 to the Right Bank and €65 to the Left Bank for a standard direct trip.
What ticket do I need for RER B from CDG?
The €14 Paris Région ↔ Aéroports ticket.
What runs late at night?
Check the live RER B and 9517 timetables. Outside their hours, use an official taxi, a pre-booked transfer or an appropriate Noctilien route.
When will CDG Express open?
The official opening is scheduled for 28 March 2027.