Best Ways to Get from Charles de Gaulle to Gare Montparnasse: Every Transfer Option Compared (2026 Guide)
You arrive at Charles de Gaulle, go through passport control without any problems, and begin to walk towards the RER B signs — only for you to realise that Gare Montparnasse doesn't in fact have a direct train service from the airport. The station is on the other side of Paris, in the southern part of the city, and to get there you always have to make at least one change.
The distance by road is about 30 to 34 km according to your starting point, and the actual travel time ranges from around 45 minutes on a quiet Sunday morning to more than 90 minutes on a wet Friday evening. This guide is for people heading to a TGV bound for Brittany, Bordeaux, or the Atlantic coast, or those staying near Montparnasse who want a clear answer rather than having to consult ten different websites with contradictory information.
Booking a private transfer in advance avoids most of the guesswork below—but it's still worth understanding the other options first.
Quick Answer: The Best Way from Charles de Gaulle to Gare Montparnasse
For the average traveller, a private transfer (€€) offers the best combination of speed, comfort and reliability, in particular when travelling with luggage or if you have to catch a TGV. The RER B combined with the Metro (€) is the most economical choice when you're carrying only a light amount of luggage and can wait. A taxi (€€€) is the quickest of the fixed-route options since it doesn't require booking, but it is the most expensive for a single traveller.
| Distance | Fastest option | Cheapest option | Most comfortable |
|---|---|---|---|
| ~30–34 km | Private transfer / taxi (traffic-dependent) | RER B + Metro | Private transfer |
Understanding the Charles de Gaulle → Gare Montparnasse Route
CDG is about 25 km northeast of central Paris, while Gare Montparnasse is located in the south and lies across the 14th and 15th arrondissements — hence this route essentially goes diagonally across the whole capital rather than going around it.
If you are driving, take the A1 motorway south and then join the Boulevard Périphérique (the ring road), which you should follow around to an exit near Porte de Vanves, Porte d'Orléans or Porte de Châtillon on the south side before going into either the Rue du Commandant Mouchotte or Hall Pasteur drop-off area. If the traffic causes you to go along the northern section of the Périphérique first, the Stade de France will be on your right.
There is no direct rail connection; the usual public transport route is to take the RER B from Terminal 2 (at the "Aéroport Charles de Gaulle 2" station) or from Terminal 1/3 (after a short journey by CDGVAL shuttle to "Aéroport Charles de Gaulle 1"), heading south to Denfert-Rochereau, and then switch onto either Metro Line 4 or Line 6 for the remaining stops to Montparnasse–Bienvenüe. The total travel time from door to door is approximately one hour when the change is taken into account.
The traffic on this road is most severe in the morning between about 7:00 and 9:30 am on the A1 heading into Paris and in the evening between 5:00 and 7:30 pm on the Périphérique travelling south, especially in the area of the interchanges at Porte de la Chapelle and Porte d'Orléans.
Your Transfer Options, One by One
Comfort is more expensive here, and the difference between the cheapest and most expensive options is greater on this route across the city than it is on most of the transfers from CDG.
Private Transfer
Verdict: This is the least stressful method of crossing Paris when you have luggage and a train to catch.
You will be taken directly from the arrival hall to the drop-off point at Gare Montparnasse on Rue du Commandant Mouchotte or in Hall Pasteur without having to change trains or go up any stairs, and since your driver knows the details of your flight, you won't be left waiting if your landing is delayed.
- Time: 40–70 minutes depending on traffic
- Price level: €€, quoted per vehicle, not per person
- Luggage: As much as the car allows — no carrying it up escalators
- Best for: Families, groups, TGV connections with fixed departure times, late or early flights
Pros: Fixed price agreed in advance, door-to-door, no transfers
Cons: Costs more than public transport for a lone traveller, needs booking ahead
The RER is quite acceptable for a single backpacker who has no train to catch afterwards, but the situation changes when there is a group, a schedule, or a stroller involved.
RER B + Metro
Verdict: it's cheap, reliable, and does act as a genuine workout when using suitcases.
Get on the RER B at Terminal 2 (or take the shuttle from Terminal 1 or 3), travel for about 45 minutes to Denfert-Rochereau and then transfer to either Metro Line 4 or 6 for the final part of the journey. Since trains come every 10 to 15 minutes, waiting is not generally a problem — it's the change at Denfert-Rochereau, with its stairs and crowds, that is.
- Time: Around 60 minutes, more with a badly timed change
- Price level: €, per person
- Luggage: Manageable with one bag; a real chore with two large suitcases
- Best for: Solo travellers, budget-conscious backpackers, off-peak journeys
Pros: Cheapest realistic option, frequent departures, no traffic risk
Cons: One mandatory change, stairs at Denfert-Rochereau, standing room only at peak times
Taxi
Verdict: It is quick to book at that rank, but more expensive than most people anticipate for this route.
Taxis which are officially based in Paris and serve CDG charge a fixed fare depending on whether you are going to the left or the right bank of the Seine. Since Montparnasse is located on the Left Bank (Rive Gauche), the fare for a drop-off there is higher than that for one on the Right Bank – a feature that tends to deceive tourists who check price estimates given by friends who have travelled to places such as Gare du Nord.
- Time: 40–75 minutes depending on traffic
- Price level: €€€, flat rate per vehicle regardless of traffic
- Luggage: Boot space for 2–3 large bags
- Best for: Travellers who'd rather queue at a rank than pre-book anything
Pros: No app or advance booking needed, flat fare means no surge pricing, driver knows the station drop-off points
Cons: Highest price bracket for this specific cross-city route, queues at the CDG taxi ranks during peak arrivals
Ride-hailing App
The verdict is that it is generally less expensive than a taxi, but the prices vary depending on demand.
The apps can be used at all the terminals at CDG, and after reserving a spot you have to go to a designated pickup area. Unlike the fixed fare for taxis, prices in this case are subject to surge pricing, so a taxi ride arranged in the late evening after a delayed flight can suddenly end up costing a lot of money.
- Time: 40–75 minutes, traffic-dependent
- Price level: €€, variable
- Luggage: Similar to a taxi, depending on car class
- Best for: Travellers comfortable booking on the spot and tracking a car on a map
Pros: Often cheaper than a flat-rate taxi off-peak, easy app booking
Cons: Surge pricing at peak times, pickup zone can add a short walk
Bus + Metro
Verdict: it is technically possible but is rarely worthwhile in this particular case.
As the old Air France 'Les Cars Air France' coach service (which previously provided a direct link to the Gare Montparnasse area) has ceased operation since the pandemic and has not come back, there is no one bus that will take you near your destination. The most realistic choice is to take the Roissybus to Opéra and then go on Metro Line 4 all the way to Montparnasse — involving two changes and taking about 90 minutes, with your luggage on a crowded coach for the first part of the journey.
- Time: 85–110 minutes
- Price level: €, per person
- Luggage: Cramped, especially standing room on the Roissybus during peak hours
- Best for: Only the most budget-driven, luggage-light travellers with no time pressure
Pros: Cheapest total fare alongside the RER
Cons: Two changes, longest realistic journey time, no dedicated Montparnasse service
Side-by-Side Comparison
| Option | Door-to-door time | Price level | Luggage | Transfers needed | Best for |
|---|---|---|---|---|---|
| Private transfer | 40–70 min | €€ | Easy | 0 | Families, TGV connections |
| RER B + Metro | ~60 min | € | Hard with 2+ bags | 1 | Solo, budget travellers |
| Taxi | 40–75 min | €€€ | Moderate | 0 | No-booking convenience |
| Ride-hailing | 40–75 min | €€ (variable) | Moderate | 0 | App-comfortable travellers |
| Bus + Metro | 85–110 min | € | Hard | 2 | Very budget-driven, no rush |
Which Option Is Right For You? (Matching Based on Traveller Type)
For families with young children: managing the change of trains at Denfert-Rochereau with a pushchair and two children is actually quite a difficulty; however, arranging a private transfer with a child seat that has been pre-booked eliminates this problem altogether.
When there are four or more people, the cost per vehicle for a private transfer is usually about the same as or even cheaper than four individual RER tickets, without having to worry about keeping everyone together when making the metro change.
For solo travellers on a budget: if you're only carrying one bag and don't have a train to catch, taking the RER B to Denfert-Rochereau and then the metro is really acceptable — in fact, it's one of the rare CDG routes where the cheap option isn't a bad idea.
For those travelling with a fixed TGV departure, Gare Montparnasse serves trains bound for Brittany, the Atlantic coast and south-west France which do not wait for delayed flights, and a tracked private transfer ensures that the RER won't be a problem.
For those who are visiting Paris, asking them to make a change of train at Denfert-Rochereau right after a long-haul flight on their first day there is a great deal to ask. A driver with a name board takes care of that.
For arrivals in the late night or early morning: the RER B does not operate throughout the night and taxi queues at CDG can become long after the last of the evening arrivals have landed. Nevertheless, a pre-booked transfer is available at any time.
The Case for Booking a Private Transfer with Top Paris Transfer
For four people a private transfer costing €€ is usually cheaper per head than buying four individual € RER tickets — never mind the trouble of having to change stations with luggage. The fare is charged per vehicle rather than per person, so the calculation becomes more favourable the larger the group.
The driver will track your flight and automatically adjust the time of pickup before waiting for you at the terminal with a name board — there's no need to rush around looking for a taxi rank or to work out which RER platform serves your terminal. A single fixed price is agreed upon with you before you land, so that you won't encounter any surprise flat-rate charges depending on which bank of the Seine you're travelling to and there will be no uncertainty about the fare if the Périphérique is backed up.
Child seats, additional luggage space and 24 hour availability are included, since the route has no direct trains during the night.
A family of five on an early flight to CDG, with a connecting TGV to Rennes two hours later, cannot afford to risk relying on the RER B running smoothly and the transfer at Denfert-Rochereau working without any problems, and so they use a pre-booked transfer with flight tracking to get to the platform with plenty of time to spare.
👉 Book your private transfer from Charles de Gaulle Airport to Gare Montparnasse with Top Paris Transfer — the price is fixed and the driver will be waiting for you when you arrive.
When to Travel: Traffic & Timing on This Route
Between 7:00 and 9:30 in the morning the A1 road towards Paris becomes congested with commuter traffic and this can increase the time taken by any route that involves travelling by road by 20 to 30 minutes. In the evenings, from about 5:00 to 7:30, the opposite problem occurs on the southern section of the Périphérique, particularly in the area around Porte d'Orléans, as the city empties out towards the suburbs.
The week-long events held at Paris Expo Porte de Versailles, which is not far from Montparnasse, can also cause traffic to become more congested and taxi availability to decrease in the area around the station—so it's worth looking into this if your dates coincide with a major trade fair.
What This Route Really Costs (Including the Costs Nobody Mentions)
The cost of the RER B and Metro ticket is on a per-person basis, so it is not suitable for groups — a family of four has to pay four times what a private transfer costs for a journey which the latter covers with a single €€ fare. On the other hand, taxis and private transfers are charged on a per-vehicle basis, which makes them more advantageous in terms of comfort when there is more than one passenger.
Some costs are worth being aware of: even though the CDGVAL shuttle service between Terminal 1/3 and the RER B station takes a bit more time, it doesn't charge an additional fare; the flat-rate taxi fare to Montparnasse is more expensive than the rate for the Right Bank merely because the station is on the opposite side of the river; and during surge periods, ride-hailing apps can gradually encroach on taxi services, particularly when people arrive late.
When it comes to a normal group travelling on to their destination by TGV, the true comparison between the options doesn't consist simply in the price but in the value of not missing a train which won't wait.
Mistakes to Avoid on the Charles de Gaulle → Gare Montparnasse Journey
- If there is a direct train: There isn't; all public transport routes require at least one change, most of them taking place at Denfert-Rochereau.
- When it comes to the change at Denfert-Rochereau with luggage, many travellers are caught out by the stairs and the crowds, having assumed that "one change" meant "a quick change."
— By comparing the fares with a friend who used a different station, you will find that the flat rate for the Left Bank to Montparnasse is greater than the one for the Right Bank — do not expect the figures to be the same. - If you book a connection to a TGV that is too tight, this is because the departures at Gare Montparnasse are on a strict schedule and this route has greater traffic variability than most CDG transfers.
- I'm trying to find the previous Air France bus. It stopped running after the pandemic, even though some of the old blog posts still refer to it.
— While travelling on the Périphérique during the evening rush without allowing for any buffer time, the exit at Porte d'Orléans becomes backed up reliably between 5 and 7:30 pm.
– In order to reach Terminals 1 and 3, you must first take the CDGVAL shuttle. Terminal 2 is the only terminal with direct access to the RER B.
FAQ
No, there is no direct train from Charles de Gaulle to Gare Montparnasse. You need to change trains along the way.
On the contrary, the usual route is to take the RER B as far as Denfert-Rochereau and then switch onto either Metro Line 4 or 6 for the last part of the journey—the total travel time being about one hour including the change.
What is the fare for a taxi from CDG to Gare Montparnasse?
The official taxi fares in Paris are based on which bank of the Seine your destination is situated on. Since Montparnasse is on the Left Bank, the fixed fare is higher than that for a drop-off on the Right Bank such as Gare du Nord – you should plan on paying in the €€€ range.
How do you get from Charles de Gaulle to Gare Montparnasse the fastest?
It will take about 40 minutes off-peak whether you take a taxi or a private transfer, though with a pre-booked transfer you avoid the problem of having to wait at taxi ranks.
Is the Air France bus still going to Gare Montparnasse?
On the contrary, the old Les Cars Air France coach service, which previously operated in the area, ceased running during the pandemic and has not restarted, even though some outdated websites still mention it.
Which of the terminals at CDG is most convenient to access by the RER B?
There is a RER B station located on the premises of Terminal 2; passengers at Terminal 1 and 3 have to take the free CDGVAL shuttle train in order to get to the RER B platform first.
Should one go for a private transfer on this route?
Yes, if you have luggage, are travelling in a group, or have a fixed TGV connection at Montparnasse, the journey avoids the need to change at Denfert-Rochereau and offers you a fixed price which had been agreed before your arrival.
Where do taxis drop off at Gare Montparnasse?
The main taxi and drop-off point is at Hall Pasteur on Rue du Commandant Mouchotte, above the platforms, which avoids the walk back through the main concourse.
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