Paris CDG (Charles de Gaulle) — RER B
Paris Charles de Gaulle (CDG) to Paris — Updated 2026
The RER B is the main rail link from Paris-Charles de Gaulle (CDG) to central Paris. The Paris Region Airports ticket costs €14 and works from either CDG rail station (Aéroport Charles de Gaulle 2 TGV or Aéroport Charles de Gaulle 1) to all central stops — Gare du Nord (30 min), Châtelet-Les Halles (35 min), and Saint-Michel Notre-Dame (40 min). For most travellers without oversized luggage or a late-night arrival, it beats every alternative on time + cost. The classic RoissyBus service ended in March 2026; Bus 9517 now handles the bus alternative. Note that RER B works often affect evenings and weekends — check the Île-de-France Mobilités or Paris Aéroport journey planner before you travel, since replacement bus routes vary by date. The airport ticket loads onto a Navigo Easy card or supported smartphone and can also be printed at ticket machines.
RER B stops
| Station / Stop | Time | Notes |
|---|---|---|
| Aéroport CDG 2 TGV (RER B) | Start | Terminal 2 concourses + TGV interchange |
| Aéroport CDG 1 (RER B) | Next stop | Terminal 1 via CDGVAL + Terminal 3 |
| Gare du Nord | ~30 min | Metro 4/5, Eurostar, north Paris |
| Châtelet-Les Halles | ~35 min | Metro 1/4/7/11/14, RER A/D interchange |
| Saint-Michel Notre-Dame | ~40 min | Latin Quarter, Notre-Dame |
| Denfert-Rochereau | ~45 min | Metro 4/6, Orlybus to CDG-Orly |
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RER B vs alternatives
| Option | Cost | Time | Best For |
|---|---|---|---|
| RER B airport ticket | €14 | 30-40 min | Fastest + cheapest for central Paris. |
| Official taxi (flat fare) | €56 right bank / €65 left | 45-75 min | Fixed fare, door-to-door. |
| Bus 9517 (RoissyBus replacement) | Check current fare | 60-90 min | Budget alternative when RER B disrupted. |
| Uber/Bolt | €45-90 (surge) | 45-75 min | App-based; airport surcharge added. |
| Private transfer | €60-100 | 45-75 min | Pre-booked pickup with sign. |
| CDGVAL to T1 | Free | ~8 min | Inter-terminal shuttle, useful for T1 → RER B. |
FAQ
How much is the RER B from Paris CDG in 2026?+
The Paris Region Airports ticket costs €14 and covers rail travel between CDG and central Paris. It can be loaded on a Navigo Easy card, a supported smartphone (with the Île-de-France Mobilités app), or bought as a paper ticket from machines/counters at CDG.
Which CDG terminal has the RER B station?+
Both. Aéroport Charles de Gaulle 2 TGV serves Terminal 2. Aéroport Charles de Gaulle 1 serves Terminal 3 directly and Terminal 1 via the free CDGVAL people-mover (~8 min). If you're at T1, plan an extra 15 minutes to reach the RER B platform.
Is RER B the same as the Paris Metro?+
No. RER B is a regional express rail line that crosses central Paris + connects to the Metro network. From CDG, it's the direct rail route into the city, faster than any Metro-only combination.
Does the RoissyBus still run from CDG?+
No — Paris Aéroport ended the classic RoissyBus service on 1 March 2026. Bus 9517 has taken over as the CDG-to-city bus option. Bus 350 to Nation and Bus 351 to Nation still run as regional alternatives.
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