How much does the RER B from CDG to Paris cost?

Around €13 one way, taking roughly 35-50 minutes to Gare du Nord or Châtelet-Les Halles depending on the time of day.

What is the flat-rate taxi price from CDG to Paris?

Around €56 to the Right Bank and €65 to the Left Bank, fixed regardless of traffic, but only from the official taxi rank with a licensed driver.

Is Roissybus cheaper than the RER B?

No, Roissybus costs more, around €17, but it goes directly to Opéra without changes and can take 60-75 minutes.

What happens if I land at CDG after midnight?

The RER B has stopped running by then; your remaining options are night buses, the flat-rate taxi (still available), or a ride-hailing app, which can surge significantly at that hour.

Should I take an Uber from CDG instead of a taxi?

Only after checking the in-app price — it can range from similar to a taxi to two or three times more during peak or bad-weather periods, unlike the taxi's fixed fare.

CDG Airport to Paris City Center 2026: All Options Compared

Getting from CDG to Paris in 2026 comes down to five real options, and the right one changes with your luggage, arrival time and group size. The RER B train is the cheapest and fastest on paper, at around €13 and 35-50 minutes to central stations, but it isn't automatically the best choice for everyone. Here is what each option actually costs and where it breaks down.

Is the RER B train worth it?

The RER B costs around €13 one way and reaches Gare du Nord or Châtelet-Les Halles in roughly 35-50 minutes depending on the time of day. It runs from around 5:00 to close to midnight, with reduced frequency late evening and early morning, so check the last train time if you land after 22:00. Strikes and engineering works are a real and recurring risk on this line — check RATP's site the morning of travel, not the week before. The train is also the route where pickpocketing is most concentrated, particularly around luggage racks and doors; keep bags in front of you and don't doze off. With more than one large suitcase per person, the stairs and lack of lifts at some stations make this option genuinely harder than it looks on a map.

What about the Roissybus or RATP buses?

Roissybus runs directly from all CDG terminals to Opéra in central Paris for around €17, taking 60-75 minutes depending on traffic — no transfers, one bag rule to worry about less than the RER. It's a reasonable middle option if your hotel is near Opéra or you'd rather sit than change trains. The regular RATP bus lines, notably 350 and 351, cost around a standard €2 ticket and connect CDG to Gare de l'Est and Nation respectively, but they are slow, can take well over 90 minutes in traffic, and are really only worth it on a tight budget with no rush and no more than hand luggage.

Is the flat-rate taxi actually a good deal?

Paris runs an official flat-rate taxi fare from CDG: around €56 to any address on the Right Bank and €65 to the Left Bank, day or night, regardless of traffic. This only applies from the official taxi rank outside the terminal, with a licensed cab, card payment accepted. Counter-intuitively, for two or more people, or one person with heavy luggage, this beats the RER on total cost once you add up individual tickets — a family of four pays roughly the same €56-65 flat fare as four separate RER tickets, but with door-to-door service and no stairs. Never accept a driver who approaches you inside the terminal building; that is unlicensed and typically much more expensive.

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What changes for night arrivals or ride-hailing apps?

After the RER B stops running, your options narrow to night buses (infrequent), the flat-rate taxi (still available 24/7 and still the same fixed price), or a ride-hailing app. Uber and similar apps at CDG can swing wildly, from roughly the same as a taxi to two or three times more during surge periods around late evening arrivals or bad weather — check the in-app price before confirming rather than assuming it's cheaper. A pre-booked private transfer, arranged in advance for a fixed price of roughly €70-90 for the city centre, removes that uncertainty entirely and is worth it for late flights or when travelling with young children.

So what should you actually book?

For most solo travellers landing in daylight hours with one bag, the RER B at around €13 is simply the rational choice. For families, groups, night arrivals, or anyone with mobility limitations, the flat-rate taxi at €56-65 is honestly better value than it first appears once every ticket and every set of stairs is counted. Remember CDGVAL, the free automatic shuttle between terminals, if you're connecting rather than heading into Paris — it's separate from all of the above and doesn't require a ticket.