Charles de Gaulle Airport to Boulogne-Billancourt: Every Transfer Option Compared (2026 Guide)
When you arrive at CDG, go through the passport control queue, and the first thing you notice on your phone is that Boulogne-Billancourt isn't really 'Paris' as Google Maps suggests. It is in fact a separate commune, situated in the bend of the Seine to the southwest of the city, and to get there from the airport you have to cross the full width of the capital first. The road distance is about 33km and, depending on the time of day, the journey takes anywhere from 40 minutes to more than an hour.
The guide is aimed at people who are flying into CDG and have a hotel, office, or apartment in Boulogne-Billancourt where they will be staying afterward — such as tourists lodging near the Musée des Années 30, business travelers going to one of the numerous corporate headquarters located here, or families coming for an extended stay. While a pre-booked private transfer removes the need to make arrangements yourself, it isn't the only alternative, and it's important to know what choices you are making.
Quick Answer: The Best Way from Charles de Gaulle to Boulogne-Billancourt
There is no direct train or RER service connecting CDG and Boulogne-Billancourt, so you can't follow the instinct of simply taking a train. For most people, hiring a private transfer (€€) is the least stressful option, as it offers a direct journey on the A1 and A13 routes with a fixed price agreed upon before you arrive. A taxi (€€) is almost as quick but charges according to the meter. Although public transport (€) is available, it requires at least one change and takes more than an hour from door to door.
| Distance | Fastest option | Cheapest option | Most comfortable |
|---|---|---|---|
| ~33 km / ~21 miles | Private transfer or taxi (~40-50 min) | RER + Metro combo (~65-80 min) | Private transfer |
Understanding the CDG → Boulogne-Billancourt Route
Boulogne-Billancourt is located southwest of central Paris and on the left bank of the Seine, directly opposite the Bois de Boulogne across the river. Since CDG is situated northeast of the city, this trip involves crossing Paris from one corner to the other, and there is no way around it.
If one travels by road, they usually start by taking the A1 south from the airport, join the Boulevard Périphérique, and then leave onto the A13 close to Porte d'Auteuil; the A13 in fact goes under the northern part of Boulogne-Billancourt — passing beneath what was previously the land of the Château Rothschild — before crossing the Seine on the Viaduc de Saint-Cloud; the exit off the A13 marked simply as "Boulogne-Billancourt" serves Suresnes, Boulogne-Billancourt and Sèvres.
Traffic is worst in the western section of the Périphérique, near Porte Maillot and Porte d'Auteuil, particularly on weekday mornings and early evenings. Since there is no direct rail connection in this area, the quickest public transportation route involves taking the RER B into central Paris and then transferring to either the RER C or Metro Line 9 for the last part of the journey—so plan on making at least one change, not on a single-ride journey.
Your Transfer Options, One by One
Comfort and price go in opposite directions—the issue is how much time you are willing to spend figuring out your connections on arrival day.
Private Transfer
The verdict is that the option which eliminates the greatest number of variables does so at a price that corresponds to this.
A private transfer involves the driver meeting you at the terminal, tracking your flight, and taking you directly from door to door to your address in Boulogne-Billancourt — there is no need to change transport or carry your suitcases down the stairs of a metro.
- Time: roughly 40-55 minutes depending on traffic
- Price level: €€, quoted per vehicle, not per person
- Luggage: as much as the vehicle class allows, loaded by the driver
Pros:
- Fixed price agreed before you land, no metered surprises
- One driver, one vehicle, no transfers with bags
- Flight tracked, so delays don't strand you
Cons:
- Costs more than public transport for a solo traveler
- Still subject to Périphérique traffic like everyone else
When two or more of you are traveling together, it is generally the one that works out best when you carry out the calculation on a per-person basis.
Taxi
The decision is almost as fast as a private transfer but the price is less predictable.
At each CDG terminal, official taxis wait for you and will take you directly to Boulogne-Billancourt via the same A1/A13 route a driver who booked in advance would take.
- Time: around 40-50 minutes outside peak hours
- Price level: €€, metered, though CDG does apply flat-rate zones for some Paris destinations — Boulogne-Billancourt often falls just outside the standard flat-fare boundary, so ask before you get in
- Luggage: fits in the boot of a standard sedan; larger groups may need a second car
Pros:
- No advance booking required
- Widely available at every terminal
Cons:
- Meter runs longer if you hit traffic — you carry that risk, not the driver
- Queues at the taxi rank can run long at peak arrival times
RER + Metro Combo
The verdict is that it is possible and actually quite good when done alone with one bag—though it is not as good when dealing with a family and four suitcases.
From the airport, take the RER B into central Paris, then switch to either Metro Line 9 or the RER C heading towards Boulogne-Billancourt, with the usual change at Châtelet-Les Halles or Saint-Michel Notre-Dame.
- Time: roughly 65-80 minutes including the change
- Price level: €, the cheapest option by a wide margin
- Luggage: manageable with a backpack; a real struggle with a family's worth of suitcases and station stairs
Pros:
- By far the lowest cost per person
- RER B runs frequently, so you're not waiting long between trains
Cons:
- At least one interchange, sometimes two
- Metro Line 9 stations in Boulogne-Billancourt (Marcel Sembat, Billancourt) have stairs, not always escalators
You can check official train schedules and connections on the SNCF timetable page
Ride-Hailing App
Verdict: useful if you have a signal and can wait out high prices.
The apps operate from designated pickup areas at CDG and follow the same A1/A13 route as a taxi.
- Time: around 40-50 minutes in normal traffic
- Price level: €€, but can spike to €€€ during high-demand periods
- Luggage: depends on the vehicle tier you select
Pros:
- Price shown upfront, unlike a metered taxi
- No need to find the taxi rank
Cons:
- Surge pricing on busy arrival banks can push costs above a pre-booked transfer
- Pickup point can be a longer walk than the taxi rank, especially at Terminal 2
Car Rental
The verdict is that it's only worthwhile if you plan to use a car for the remainder of your stay, not just for the transfer.
Rental desks are available at all CDG terminals, and the route to Boulogne-Billancourt follows the A1/A13 corridor.
- Time: around 40-55 minutes, plus paperwork at the counter
- Price level: €€, before parking
- Luggage: whatever the car holds
Pros:
- Freedom to explore Île-de-France beyond central Paris
- No dependence on train schedules
Cons:
- Parking in Boulogne-Billancourt is limited and rarely free at hotels
- Jet-lagged driving on an unfamiliar Périphérique isn't for everyone
Side-by-Side Comparison
| Option | Door-to-door time | Price level | Luggage | Transfers needed | Best for |
|---|---|---|---|---|---|
| Private transfer | 40-55 min | €€ | Full capacity, loaded for you | None | Families, business travelers, groups |
| Taxi | 40-50 min | €€ | Fits standard boot | None | Solo travelers wanting speed, no booking |
| RER + Metro | 65-80 min | € | Limited, stairs involved | 1-2 | Budget solo travelers, light packers |
| Ride-hailing | 40-50 min | €€-€€€ | Tier-dependent | None | Tech-comfortable travelers, flexible budget |
| Car rental | 40-55 min | €€ | Full capacity | None | Travelers touring beyond Paris |
Which of the options is right for you?
For families who have young children the change of train at Châtelet using a stroller and two suitcases is something you only ever have to do once; if you have a private transfer with a child seat that has been arranged in advance then you eliminate all that trouble.
For business people: since several of the company's offices are located in Boulogne-Billancourt, if you arrive directly for a meeting then you cannot afford the RER B to break down. A private transfer with a fixed time ensures your timetable stays on track.
For couples, a taxi or private transfer divides the cost reasonably between the two people, so that you'll be at your hotel before the RER gets to its first interchange.
If you are a budget traveler and are carrying a backpack without minding the stairs, taking the RER B and then changing to Metro Line 9 is really a good option—this is the case with regard to the type of traveler for whom the cheapest solution is not a compromise.
People who have a lot of luggage** should entirely avoid using public transportation since not all of the stations on Metro Line 9 at Boulogne-Billancourt are step-free and it is miserable to carry four bags through the Châtelet interchange during rush hour.
For those who are visiting Paris for the first time, asking them to cope with an unfamiliar interchange right after a long-haul flight is a great deal to expect. The stress of the first day can be eliminated by a driver who holds a sign with your name.
For those arriving late at night or early in the morning: the RER B service does not operate all night and taxi ranks may become sparse at unusual hours. If you book your transfer in advance, then a driver will be waiting no matter when you arrive.
The Case for Booking a Private Transfer with Top Paris Transfer
When you work out the cost for a family of four, the per-person benefit of the RER disappears quickly – the total for four separate train tickets together with the RER C or Metro Line 9 add-on is usually about the same as the price of a single €€ private transfer for the entire group, without anyone having to stand on a platform with their suitcases.
Since your driver is keeping track of your flight, your arrival at CDG being delayed won't result in you losing your booking or having to rush about to rebook a train; instead, they will be waiting for you at the arrivals with a name card and will help you with your bags and then take you directly to the car.
All the arrangements are settled before you arrive — there will be no metered charges if traffic close to Porte d'Auteuil causes a delay and no surge pricing since everybody else's flight landed at the same time as yours. Facilities such as child seats, additional luggage space, and 24-hour availability are included from the start, not sold to you at the airport.
A common situation on this route is this: a family arrives at Terminal 2E on a delayed evening flight, with the children asleep, four suitcases, and no desire to make the metro change, which would take about an hour on the Périphérique. A driver booked in advance is waiting in the arrivals hall and turns what should be a 90-minute journey into a 45-minute nap in the back seat.
👉 Book a private transfer from Charles de Gaulle to Boulogne-Billancourt with Top Paris Transfer — the price is fixed, and the driver will be waiting for you at the arrivals hall.
When to Travel: Traffic & Timing on This Route
Between 7:30 and 9:30 on weekday mornings the section of the Périphérique close to Porte Maillot and Porte d'Auteuil becomes very slow as commuters enter and leave the city; during the evening rush, which takes place between about 5 p.m. and 7:30 p.m., the same pattern is observed, although it is also affected by traffic joining the A13 heading for the western suburbs.
From late May through early June, the Roland-Garros tennis tournament causes heavy traffic near Porte d'Auteuil—specifically at the point where the A13 road leading into Boulogne-Billancourt is nearest. If your dates coincide with this period, allow extra time or arrange a driver who is already familiar with detours around it.
Outside peak hours and outside the tournament season, the journey comes closer to the 40-minute end of the range, and public transport links are also less crowded.
What This Route Really Costs (Including the Costs Nobody Mentions)
The cost of a private transfer is €€ and the fee is charged per vehicle rather than per person, so the more people who are traveling together, the more favourable the figure becomes. Taxis also fall into the €€ price range but have the disadvantage of being metered should there be a backlog on the A13. Public transport is by far the € choice, although it is seldom as straightforward as one fare.
It's important to be aware of hidden costs: the journey by the RER B to central Paris and the connection via Metro Line 9 or the RER C to Boulogne-Billancourt generally involve two distinct ticket types rather than a single combined fare. During surge periods, ride-hailing apps can rise to very high prices, especially in the early morning when flights arrive in groups. Furthermore, hotels in Boulogne-Billancourt almost never include free parking, meaning that the cost of renting a car is not apparent until you check in.
When you factor in separate train tickets, metro top-ups, and the hassle of getting everyone through an interchange, the real cost difference between public transport and a private transfer is smaller than it seems at first.
Mistakes to Avoid on the CDG → Boulogne-Billancourt Journey
- On the assumption that there is a direct train. However, there isn't – all rail routes to Boulogne-Billancourt require at least one change, most frequently at Châtelet-Les Halles or Saint-Michel Notre-Dame.
- The interchange with the RER and metro when carrying luggage is often underestimated. At the Boulogne-Billancourt end of Metro Line 9, stairs are available rather than escalators.
– If you don't check your terminal before arranging a pickup, this is a problem since the terminals at CDG are separated out and the driver needs to know which one to go to, for example the correct hall between 2E and 2F. - When going through Porte d'Auteuil during Roland-Garros without having extra time included. The traffic in this area from late May to early June is genuinely different from the rest of the year.
- It should be noted that the flat taxi fares at CDG apply to Boulogne-Billancourt. Although the flat-rate zones are designed for central Paris destinations, this route usually lies outside that boundary, so you should ask the driver directly.
- If you are booking a rental car just for the purpose of transferring, be aware that parking space in Boulogne-Billancourt is limited and is seldom provided for by the hotels — it's an expense that tends to surprise people.
FAQ
Is there a direct train from Charles de Gaulle to Boulogne-Billancourt?
Not at all—there is no single-line service. The quickest rail route is to take the RER B to central Paris, then change to either Metro Line 9 or the RER C, giving you a real connection to your journey.
What is the time taken to travel from CDG to Boulogne-Billancourt?
If you are traveling by road, allow 40 to 55 minutes outside of rush hour, but more time will be needed during the peak periods on weekdays. By public transport, allow 65 to 80 minutes, including time to change in central Paris.
How can I get the cheapest form of transport from CDG to Boulogne-Billancourt?
The combination of the RER B and Metro Line 9 or the RER C is by a large margin the cheapest option, at € per person, even though it requires some stairs and at least one change of train.
Is the fare for a taxi going from CDG to Boulogne-Billancourt a flat rate?
The flat-rate taxi zones at CDG are based on central Paris destinations, and Boulogne-Billancourt is often outside this boundary, so check with your driver before you start your journey, as the meter may start running.
What exit off the A13 takes you to Boulogne-Billancourt?
The exit marked Boulogne-Billancourt also serves Suresnes and Sèvres and is reached shortly after the A13 has crossed the Seine on the Viaduc de Saint-Cloud.
Would it be worth having a private transfer when a family arrives at CDG?
For the majority of families, yes – the fee for a private transfer is charged per vehicle not per person, a factor which usually reduces the price difference when you calculate the cost of individual train tickets, and it also eliminates the need to change from the RER to the metro when traveling with children and luggage.
Does the traffic situated near Roland-Garros have an effect on this route?
It can. The tournament runs late May into early June and adds congestion around Porte d'Auteuil, which sits directly on the A13 route into Boulogne-Billancourt.
What's the best option for a late-night arrival at CDG?
A pre-booked private transfer, since RER B doesn't run all night and taxi ranks can thin out at unusual hours. A driver tracking your flight will be waiting, no matter when you land.
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