Quick answer: The cheapest way from Charles de Gaulle (CDG) to central Paris is the RER B train (about €11.80, 35–50 minutes to Châtelet–Les Halles). For groups or lots of luggage, official flat-fare taxis are simplest: €56 to the Right Bank, €65 to the Left Bank.
Your options compared
| Option | Time | Cost |
|---|---|---|
| RER B train | 35–50 min | ~€11.80 |
| Roissybus (to Opéra) | 60–75 min | ~€16.60 |
| Official taxi (flat fare) | 40–60 min | €56–65 |
| Uber / private transfer | 40–60 min | €45–70 |
Which should you choose?
Take the RER B if you’re on a budget and not staying far from a station — it’s the fastest into the centre. Choose a flat-fare taxi if you have heavy bags, arrive late, or are travelling as a group, since the fixed price removes any meter surprises.
Tips
Buy your RER ticket from machines (keep it until you exit), only use the official taxi rank — never accept a ride from someone approaching you in the terminal — and check for occasional RER B strikes or works, when a taxi or bus is safer.
FAQ
Cheapest way from CDG to Paris? The RER B train (~€11.80).
How long does it take? 35–75 minutes depending on mode and traffic.
How much is a taxi? A fixed €56 (Right Bank) or €65 (Left Bank).
Planning Paris? See our best time to visit France.
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Written by
John Morrison is the founder and lead travel writer at Packzup. Over the past decade he has explored destinations across Africa, the Americas, Asia, Europe, the Middle East, and Oceania — always self-funded, never on a press trip.