RER B Train CDG To Paris: How Much In 2026?
By CDG Airport Guide - Admin
RER B Train CDG to Paris: The Complete Travel Guide (2026)
The RER B train CDG to Paris is the fastest and most cost-effective way to reach the city center from Paris Charles de Gaulle Airport. This direct airport train connects Terminal 2 to major central hubs like Gare du Nord, Châtelet–Les Halles, and Saint-Michel–Notre-Dame in roughly 30–40 minutes, with departures every 10–15 minutes throughout the day.
Key Takeaways
- The RER B provides a direct rail link between CDG Terminal 2 and central Paris, with no transfers required to reach the city center.
- A single adult ticket costs €11.80, children under 4 travel free, and those aged 4–9 pay a reduced fare.
- Travel time is approximately 25 minutes to Gare du Nord, 30 minutes to Châtelet–Les Halles, and 35 minutes to Saint-Michel–Notre-Dame.
- Trains run from around 4:50 AM until just after midnight, with night buses and taxis available during the gap.
- Compared to taxis and private shuttles, the RER B is the most budget-friendly option for airport transfers.
The Complete Answer: How to Take the RER B from CDG to Paris
Shows the train at the airport station, emphasizing the direct connection to Paris.
What Is the RER B and Why It Matters for CDG Travelers
The RER B is one of five regional express rail lines in the Île-de-France network, operated jointly by RATP and SNCF. It serves as the primary rail connection between Paris Charles de Gaulle Airport and the city, offering a direct underground-to-airport link without needing to change trains or navigate separate transit systems.
Definition: The RER (Réseau Express Régional) is a hybrid suburban rail and rapid transit system serving Paris and its surrounding regions. The RER B line specifically connects CDG Airport to central Paris and continues south to the suburbs.
The key advantage of the RER B train CDG to Paris is its simplicity: you board at the airport and step off in the heart of the city. The line also serves major employment and tourist districts, making it the default choice for most visitors.
Captures the experience of the journey, highlighting the comfort and views during the ride.
Where to Catch the RER B at CDG (Terminal-Specific Guidance)
The RER B station at CDG is located in Terminal 2, situated directly beneath the TGV high-speed train station. If you arrive at Terminal 2E or 2F, you can walk directly to the station following the "RER" and "TGV" signs.
For passengers arriving at Terminals 1 or 3, the free CDGVAL automated shuttle connects you to Terminal 2. The shuttle runs every few minutes and takes about 8 minutes to complete the loop, making it a seamless connection.
Quick Answer: The RER B station is located in Terminal 2 at CDG, below the TGV station. Passengers from Terminals 1 and 3 can reach it via the free CDGVAL shuttle, which operates continuously.
Ticket Prices, Purchase Methods, and Travel Time
A single adult ticket for the RER B train CDG to Paris costs €11.80. This is a specific airport fare, separate from standard Paris Metro tickets, and it includes any onward connection within central Paris on the Metro or RER network.
You can purchase tickets from automated machines at the station, which accept coins and international credit cards. The RATP app and the official online booking portal are also available for advance purchase. The machines offer multiple language options, including English.
| Destination | Approximate Travel Time |
|---|---|
| Gare du Nord | ~25 minutes |
| Châtelet–Les Halles | ~30 minutes |
| Saint-Michel–Notre-Dame | ~35 minutes |
Travel times can vary slightly depending on the time of day and the specific train you board, but these figures represent typical journey durations.
Planning Your RER B Journey: Before You Land
Choosing the Right Ticket or Pass for Your Trip
Your choice of ticket depends on how long you're staying and how much you plan to use Paris public transport. For a single airport transfer, the standard €11.80 ticket is sufficient. If you're staying multiple days and plan to use the Metro frequently, consider the Navigo Semaine (weekly) pass or the Paris Visite pass.
| Option | Cost | Validity | Best For |
|---|---|---|---|
| Single RER B ticket | €11.80 | One journey | Airport transfers only |
| Paris Visite pass | Varies | 1–5 consecutive days | Tourists using buses, Metro, and RER |
| Navigo Semaine | Varies | Monday–Sunday | Longer stays with frequent travel |
The Navigo Semaine is a good value if you arrive on a Monday or Tuesday and stay through the weekend. The Paris Visite pass offers simplicity and includes discounts at some attractions, though it costs more per day than a standard Navigo pass.
Understanding RER B Branches and Your Destination Station
The RER B splits into two branches south of Paris, heading toward Saint-Rémy-lès-Chevreuse or Robinson. All trains from CDG travel through central Paris, so you don't need to worry about the branch until after you've passed the city center.
The key interchange stations are Gare du Nord, where you can connect to Metro lines 2, 4, and 5, and Châtelet–Les Halles, which connects to several Metro lines and the RER A and D. If your hotel is near any of these stations, you can walk or take a short Metro connection.
Quick Answer: All RER B trains from CDG pass through central Paris. The branch split occurs south of the city, so you only need to know your branch if your final destination is beyond the central stations.
Best Times to Travel and Avoiding Peak Hour Crowds
Traveling outside rush hours makes a significant difference, especially with luggage. The morning peak runs from roughly 7:00–9:30 AM and the evening peak from 5:00–7:30 PM, when commuters fill the trains.
Airport-bound trains are often less crowded than city-bound ones during the morning peak, since most commuters travel into the city. If you're arriving at CDG during these hours, you may find a more comfortable ride heading toward Paris than you would in the opposite direction.
Off-peak travel also reduces the risk of pickpocketing and makes it easier to find space for your bags. If your flight lands during a busy period, consider waiting 15–20 minutes for the next train rather than squeezing into a crowded carriage.
Step-by-Step: Your First RER B Journey from CDG
Step 1: Arriving at CDG and Finding the Train Station
After collecting your luggage, follow the "RER" and "TGV" signs. If you're at Terminal 2, you can walk directly to the station. From Terminals 1 or 3, take the free CDGVAL shuttle to Terminal 2 and follow the signs to the RER B.
The station is well-signposted throughout the airport, and the journey from the arrivals hall to the platform typically takes 10–20 minutes depending on your terminal.
Step 2: Purchasing Your Ticket or Validating Your Pass
Use the automated ticket machines located in the station. They accept coins and international credit cards, and you can switch the interface to English. If you have a Navigo pass, ensure it's loaded with the correct fare before boarding.
Keep your ticket until you exit the station in Paris. The entry gates require validation, and you'll need the same ticket to exit at your destination. Losing it means paying again or being unable to leave the station.
Step 3: Boarding the Correct Train and Riding to Paris
Check the platform display to confirm the train's destination. Any train heading toward Saint-Rémy-lès-Chevreuse or Robinson will pass through central Paris. Avoid trains heading toward other destinations, such as Aéroport Charles de Gaulle 2 TGV (which is the same station) or Mitry-Claye (which serves a different branch).
Onboard announcements are made in both French and English, and visual displays show the next stops. The journey is straightforward, so you can relax and watch for your destination station.
Step 4: Exiting at Your Destination Station and Connecting
Scan your ticket at the exit gates to leave the station. If you need to transfer to the Metro, follow the signs to the connecting lines. Gare du Nord and Châtelet–Les Halles are large, busy stations, so allow extra time to navigate them, especially with luggage.
For most central Paris destinations, you can walk from one of the major RER B stops rather than transferring. Check a map before you travel to see if your hotel is within walking distance of a station.
Navigating CDG and Paris: Practical Tips for the RER B
Luggage Handling and Accessibility on the RER B
The RER B trains have dedicated luggage areas near the doors, making it easier to manage large bags. However, the trains are not fully step-free at every station. Major stations like Gare du Nord and Châtelet–Les Halles have elevators and escalators, but smaller stops may require using stairs.
If you have heavy luggage or mobility challenges, plan your route carefully and check the RATP accessibility map before traveling. The airport station at CDG is step-free, but you may encounter stairs at your destination.
Safety, Scams, and Staying Alert on the Line
The RER B is generally safe, but like any major transit system, it attracts pickpockets, especially during rush hours. Keep your belongings secure and avoid leaving bags unattended. Be cautious of distraction techniques, such as someone spilling something on you or asking for directions.
Common scams at major stations include ticket touts offering to sell you tickets or help with machines. Use the official machines only and ignore anyone offering assistance. If someone approaches you claiming to be a transit official, verify their identification before handing over your ticket.
What to Do If You Miss the Last Train or Encounter a Disruption
The last RER B train from CDG departs around 12:15 AM, and the first train arrives around 4:50 AM. If you arrive during the gap, your options are the Noctilien night bus, a taxi, or a ride-hailing service.
Check the RATP app or website for live service updates before you travel. Planned maintenance closures can affect the line, particularly on weekends. If the RER B is disrupted, the app will suggest alternative routes, and you can request a refund for unused tickets.
RER B vs. Alternatives: Making the Right Choice
Side-by-Side Comparison: RER B vs. Taxi vs. Private Shuttle
| Option | Cost | Travel Time | Luggage Capacity | Convenience |
|---|---|---|---|---|
| RER B | €11.80 | 30–40 minutes | Limited space | Requires navigating the station |
| Taxi | Flat rate to Right Bank | 30–50 minutes | Ample space | Door-to-door service |
| Private shuttle | Varies | 30–50 minutes | Ample space | Pre-booked, door-to-door |
Taxis from CDG operate on a flat-rate fare to central Paris, with the rate to the Right Bank being €56. This fare is fixed regardless of traffic, making it a predictable option for those who prefer door-to-door service. Private shuttles vary in price but often cost more than a taxi.
For a solo traveler or a couple with manageable luggage, the RER B is the clear winner on cost. For families with multiple large suitcases or those arriving late at night, a taxi or shuttle may be worth the extra expense.
Who Should Choose the RER B (and Who Should Not)
The RER B train CDG to Paris is ideal for solo travelers, couples, and small groups who want to save money and don't mind navigating the transit system. It's also a good choice if you're staying near a central RER B station like Gare du Nord or Châtelet–Les Halles.
You might prefer a taxi or shuttle if you're traveling with multiple large suitcases, heading to the far suburbs, or arriving late at night when the RER B isn't running. Families with young children may also find a taxi more comfortable, especially if they need to manage strollers and car seats.
Frequently Asked Questions
How much does the RER B cost from CDG to Paris?
A single adult ticket costs €11.80 and includes any onward Metro or RER connection within central Paris. Children under 4 travel free, and those aged 4–9 pay a reduced fare.
How long does the RER B take from CDG to central Paris?
The journey takes approximately 25 minutes to Gare du Nord, 30 minutes to Châtelet–Les Halles, and 35 minutes to Saint-Michel–Notre-Dame. Travel times can vary slightly depending on the time of day and the specific train.
Does the RER B run 24 hours a day?
No. The last train from CDG departs around 12:15 AM, and the first train arrives around 4:50 AM. During the gap, the Noctilien night bus, taxis, and ride-hailing services are the available alternatives.
Can I use a Paris Metro ticket on the RER B from CDG?
No. The airport journey requires a specific, more expensive ticket known as the "Billet Origine-Destination." Standard Metro tickets (t+) are not valid for this trip.
Is the RER B accessible for passengers with reduced mobility?
The airport station at CDG is step-free, and major stations like Gare du Nord and Châtelet–Les Halles have elevators and escalators. However, not all stations have step-free access, so travelers should check the RATP accessibility map before their journey.
Conclusion
The RER B train CDG to Paris offers the best balance of price and convenience for most travelers. At €11.80 for a single ticket, it's significantly cheaper than a taxi or private shuttle, and the direct connection from the airport to central Paris eliminates the need for transfers.
Before you travel, plan ahead by knowing your destination station, purchasing the correct ticket, and checking the train's destination on the platform display. If you're traveling during off-peak hours, you'll enjoy a more comfortable ride with more space for your luggage.
For the majority of visitors, the RER B is the smart choice. It's reliable, frequent, and affordable—everything you need for a smooth start to your Paris adventure.