CDG to Paris by RER B: Which Airport Ticket Works?

A traveler landing at Paris Charles de Gaulle in October 2026 can still reach central Paris on the RER B, but the ticket name and price are easy to get wrong. The rail journey requires the Paris Region ↔ Airports ticket, currently €14 for an adult single journey. The ordinary Metro-Train-RER ticket costs €2.55 and does not cover a journey to the airport station. Those figures come from the regional transport authority's 2026 fare schedule. The choice matters before you enter the gates: decide whether you are taking the airport rail link, then buy the ticket that actually includes it. A Paris arrival is no occasion to discover at the exit that a cheaper city ticket was the wrong product.

For a worldwide comparison, the European Central Bank reference rates for 16 October 2026 make €14 about US$15.75, €7 about US$7.88, €2.55 about US$2.87 and €12.30 about US$13.84. These are dated approximations, not a fare charged in dollars or a promise about a card exchange rate.

The short answer for an arriving passenger

If your destination is reachable by RER B and a connected metro or rail journey, buy one Paris Region ↔ Airports ticket for each eligible traveler, on a supported phone or Navigo Easy card. The authority says that this ticket covers rail travel between Charles de Gaulle and the Paris region, including qualifying metro, RER and train connections, for two hours from first validation while you remain inside the network. Its ticket conditions exclude buses and trams and prohibit an out-and-back or an interrupted journey on the same ticket. Plan the final walk from your station separately. If your hotel needs a bus after the rail leg, allow for a separate bus ticket rather than assuming the airport fare pays for every vehicle.

Start with your hotel address, not a generic instruction to go to Paris. The RER B crosses the city at stations such as Gare du Nord, Châtelet–Les Halles and Denfert-Rochereau. A hotel by one of those stations can make the rail option straightforward. A hotel elsewhere may require a metro transfer or a longer walk. Use the official journey planner immediately before travel to see the actual service pattern and interchange; maintenance, strikes and late arrivals can change a practical recommendation. The transport authority's airport guide identifies the two airport rail stations, so check your terminal before following station signs.

Find the correct airport station

Charles de Gaulle has two RER B stations, and the number in a station name is easy to mistake for the number on a boarding pass. “Aéroport Charles de Gaulle 1” serves terminals 1 and 3; “Aéroport Charles de Gaulle 2 – TGV” serves terminals 2A through 2G, according to Île-de-France Mobilités. That does not mean every terminal doorway opens directly onto a platform. Follow the airport's rail signs and allow time to reach the station from your particular arrivals hall. For a return trip, double-check your airline terminal before deciding where to get off. Reaching the correct airport is only part of reaching the correct check-in desk.

The authority describes both airport stations as wheelchair accessible and lists lifts, wider gates and staff assistance. Accessibility for the complete journey also depends on your Paris interchange and destination station, so confirm the whole route rather than inferring it from the airport station alone. Travelers managing large cases should apply the same end-to-end test. A cheap direct train to a station far from the hotel may become awkward if the last section involves stairs, a long street crossing or another vehicle. By contrast, a station near the hotel can make the rail ticket the clearest option even when traffic on the roads looks manageable.

Which fare is actually valid?

The 2026 adult airport ticket is €14; the published reduced airport fare is €7 for travelers who meet the relevant reduced-fare conditions. Do not select the reduced price merely because you are a visitor or have a child with you: check the eligibility conditions when buying. A normal Metro-Train-RER ticket is €2.55 for an adult, but that lower price is the wrong comparison if you intend to pass through the airport gates. A Navigo Day pass, published at €12.30 for all zones in the same schedule, also excludes airports. A pass that looks cheaper than the airport single therefore is not automatically an airport bargain.

There are exceptions for existing passes. The transport authority says an eligible monthly or annual Navigo pass that includes the airport area can cover the rail journey without a separate airport ticket. Its airport guidance also identifies Paris Visite as a pass with airport travel included. Check the product you actually hold and its zones before relying on it; the name “Navigo” alone is not proof of airport validity. A visitor who plans only one airport transfer and a few city rides should compare the airport single plus the rides they expect to take with any visitor pass, using the current published prices. Do the calculation for the real itinerary, rather than buying the broadest pass out of uncertainty.

Buying and validating without a ticket conflict

The Paris Region ↔ Airports ticket can be loaded on a Navigo Easy pass or a compatible smartphone through the official app. One operational detail can spoil an otherwise good plan: the authority says a Navigo Easy pass already holding a Metro-Train-RER ticket cannot also hold the airport ticket. Check what is on the pass before loading, and use the app's instructions or a separate medium if the ticket types conflict. Do not assume that seeing an unused city ticket in the app means it will work at the airport gate. The airport product should be visible on the medium you will validate with; keep that same medium available for transfers and exit checks.

Consider a worked example. Two adults arrive at terminal 2 and have a hotel near Châtelet–Les Halles. They each buy one adult airport ticket at €14, so the published rail fares total €28 for the pair. They follow signs to Aéroport Charles de Gaulle 2 – TGV, validate their own tickets, ride RER B toward Paris and exit at the city station. If the hotel is a short walk away, no extra vehicle is needed. If the hotel is by a metro station that can be reached through a permitted in-network connection within the ticket conditions, they should follow the official journey planner and stay within the gates until that connection. If they leave the network for lunch, they cannot treat the same airport ticket as a fresh ride later.

When another mode makes more sense

Rail is not always the best choice. A traveler arriving after the useful train window, a party with difficult luggage, or someone whose accommodation is far from accessible rail stations may prefer a licensed taxi or another suitable service. Compare the door-to-door route and total party cost, not only the per-person train fare. Conversely, do not let a road map's short distance make a train seem slow; traffic and rail service conditions both vary. The question for a particular arrival is which route is workable at that hour with those bags and that destination. Check live service information before leaving arrivals, especially if your flight has been delayed.

The official RATP airport-ticket guide confirms that RER B serves Charles de Gaulle and that the dedicated airport ticket is the rail product. The airport ticket's limits are as important as its price: it does not pay for a local bus, and it does not become a day of unlimited transport. If your planned journey includes either of those, price that part separately. RATP and Île-de-France Mobilités publish service information for the actual date; look at it before committing to a late-night or tight onward connection.

A practical departure checklist

For a return flight, work backward from the airline's check-in and security deadlines. Identify whether you need the RER stop called CDG 1 or CDG 2 – TGV, then map the walk or terminal connection to the exact departure terminal. Check for scheduled rail work on your departure day. Buy the appropriate airport fare or verify that your pass covers the airport, and allow extra time for a missed train or a confusing interchange. The published ticket permits qualifying rail and metro connections within two hours without leaving the network, but it is not permission to stop sightseeing between legs. Keep your phone charged if the ticket is on it.

Connectivity helps with live train status, digital tickets and the hotel address after landing. A travel eSIM is a possible way to get data, subject to your device's compatibility and the plan's terms; it is separate from the transport fare. Check device compatibility before buying any travel data plan, and save the hotel address and journey outline offline as a backup. The decision to buy the €14 airport rail ticket should come from the official fare and your actual route, while the decision about mobile data should come from your own device and usage needs.

Frequently Asked Questions

Can I take RER B from CDG with a normal metro ticket?

No. The published 2026 airport rail fare is the Paris Region ↔ Airports ticket, while the ordinary Metro-Train-RER ticket is a separate city product. Check any qualifying pass you already hold before buying another ticket.

Which CDG station should I use for terminal 2?

Île-de-France Mobilités lists Aéroport Charles de Gaulle 2 – TGV for terminals 2A to 2G. Follow terminal signs from your own hall and allow time for the walk or connection.

Does the airport ticket include a metro transfer?

It covers qualifying metro, train and RER connections within two hours from first validation while you remain in the network. It does not include a bus or tram, nor an interrupted journey.