Paris CDG — RER B
Paris Charles de Gaulle (CDG) to Paris — Updated 2026
Paris Charles de Gaulle (CDG) connects to central Paris via the RER B suburban rail — €14 one-way on the Ticket Paris Région ↔ Aéroports, which also covers zones 1–5 and two hours of onward Métro/RER transfers, 25–40 minutes to Gare du Nord, Châtelet–Les Halles, or Saint-Michel–Notre-Dame depending on stop pattern. Trains run every 10–15 minutes between 05:00 and 00:00 from both Terminal 2 (underground station accessible by free CDGVAL light rail from T1) and the standalone Terminal 3 station. CDG also has a TGV station (CDG2 TGV) for direct high-speed rail to Lyon, Marseille, Bordeaux, Strasbourg, Lille and London (Eurostar via interchange at Lille Europe). RER B is the operator-recommended fast option for central Paris. Roissybus was withdrawn on 28 February 2026 after a 40% fall in ridership; bus 9517 replaced it from 1 March, running to Gare d'Argenteuil via Saint-Denis Pleyel (Metro 14) rather than Opéra. Le Bus Direct closed in 2020. The remaining budget options are city bus 350 to Porte de la Chapelle and 351 to Nation (€2.05, about an hour), plus Noctilien N140/N143 overnight. Taxis run a flat fare of €56 to the right bank and €65 to the left bank — worth it only if luggage or accessibility makes the RER impractical.
RER B stops
| Station / Stop | Time | Notes |
|---|---|---|
| CDG Terminal 2 (RER) | 0 min | Underground station, direct from T2A–T2F |
| CDG Terminal 1 (CDGVAL + T3 RER) | +5 min | Free CDGVAL to T3 RER stop |
| Aulnay-sous-Bois | ~12 min | First major Paris-area stop |
| Gare du Nord | 25–30 min | Métro 2/4/5, Eurostar, Thalys interchange |
| Châtelet–Les Halles | 30–35 min | Métro 1/4/7/11/14, central Paris hub |
| Saint-Michel–Notre-Dame | 35–40 min | Métro 4 + RER C, Latin Quarter |
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RER B vs alternatives
| Option | Cost | Time | Best For |
|---|---|---|---|
| RER B (Ticket Paris Région ↔ Aéroports) | €14 | 25–40 min | Direct to Gare du Nord, Châtelet, Saint-Michel. Includes 2h of onward Métro/RER transfers in zones 1–5. |
| Bus 9517 | €2.05 | 40–60 min | Replaced Roissybus on 1 March 2026. Serves Saint-Denis Pleyel (Metro 14), not Opéra. |
| TGV from CDG2 TGV | €60+ | Various | Direct to Lyon, Marseille, Bordeaux, Strasbourg. |
| City bus 350 (to Porte de la Chapelle) | €2.05 | ~60 min | Cheapest formal option. Slow. |
| Noctilien N140 / N143 (night) | €2.05 | 45–90 min | Overnight only, roughly 00:30–05:00. No airport surcharge. |
| Taxi flat fare | €56–65 | 40–75 min | Flat €56 right bank, €65 left bank — day or night, luggage included. |
FAQ
Does the Roissybus still run from CDG?+
No. Île-de-France Mobilités withdrew Roissybus after service ended on 28 February 2026, following a 40% drop in ridership since 2023 and persistent unreliability on its ring-road route. Bus 9517 replaced it on 1 March 2026, but it is not a like-for-like swap: 9517 runs to Gare d'Argenteuil via Stade de France–Saint-Denis, Saint-Denis Pleyel (Metro 14) and Carrefour Pleyel (Metro 13), and does not serve Opéra. For central Paris the RER B is now the default at €14, with bus 350 or 351 as the €2.05 budget option.
Does CDG have a TGV high-speed rail station?+
Yes — CDG2 TGV station is integrated with Terminal 2, accessed from T2C/T2E/T2F via a covered walkway. Direct TGV services to Lyon Part-Dieu (~2h, from €60), Marseille (~3h 30m, from €70), Bordeaux, Strasbourg, Lille (then Eurostar to London). Bookable via SNCF Connect or Trainline. Useful if your final destination is in another French city.
Which CDG terminal has the RER B station?+
Terminal 2 has the integrated RER B station underneath the terminal — directly accessible from T2A, T2C, T2D, T2E, T2F via signage. Terminal 1 connects to the RER B at Terminal 3 station via the free CDGVAL light rail (4 minutes). Terminal 3 has its own RER B station directly outside arrivals. Don't walk between terminals at CDG — they're up to 1 km apart.
Last RER B from CDG?+
The last RER B from CDG to Paris departs around 00:00 (varies slightly Sunday-Thursday vs Friday-Saturday). After that the options are Noctilien N143 or N140 (€2.05, roughly 00:30–05:00) or a taxi at the €56–65 flat fare — Roissybus no longer runs. For overnight arrivals, taxi is usually the cleanest option. Note that during strike days RER B may end earlier — check via the SNCF Connect app.
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