The simplest way to get online at Paris Charles de Gaulle is to buy a France eSIM online before you fly, starting at £2.59 for 1GB/7 days. You scan a QR code at home, keep the eSIM switched off until you land, and turn it on as the plane taxis to the gate. By the time you clear passport control your phone has already connected to a major French network, so you can order a taxi, check your hotel address, or buy an RER B ticket without hunting for a SIM counter or a working Wi-Fi login.
This guide covers exactly how to set that up, why it beats buying a physical SIM at the airport, and how to get from CDG into central Paris once you are online.
Buy Before You Fly, Not at the Airport Counter
There are SIM and eSIM vendors inside CDG, but arriving and then shopping for connectivity is the slow way to do it. Here is the honest comparison.
Airport SIM counters in Terminals 1, 2, and 3 sell prepaid tourist SIMs, but they open on retail hours, they queue up when big long-haul flights land together, and the "tourist" packages on display are usually the most expensive per gigabyte you will find in France. You also have to pop out your home SIM, keep track of a tiny plastic card, and sometimes show ID.
A France eSIM bought online installs in about three minutes from your sofa. There is no counter, no queue, no plastic, and no ID paperwork at a kiosk. You land already connected. For a CDG-specific rundown of terminals and connectivity options see our Paris Charles de Gaulle airport eSIM page, and if you want to compare the cost against other options, our travel eSIM guide breaks down the per-gigabyte maths.
The only thing a physical SIM gives you that a data eSIM does not is a French phone number. For most visitors that does not matter - see the section below on calls.
France eSIM Plans and Pricing
| Data | Duration | Price |
|---|---|---|
| 3GB Data | 15 Days | £2.63 |
| 5GB Data | 30 Days | £3.95 |
| 10GB Data | 30 Days | £7.10 |
| 20GB Data | 30 Days | £12.78 |
| 50GB Data | 30 Days | £28.76 |
| 1 Day | 1 Day | £2.59 |
| 2 Days | 2 Days | £5.19 |
| 3 Days | 3 Days | £7.78 |
| 4 Days | 4 Days | £10.20 |
| 5 Days | 5 Days | £12.93 |
| 6 Days | 6 Days | £15.67 |
| 7 Days | 7 Days | £18.41 |
| 8 Days | 8 Days | £19.78 |
| 9 Days | 9 Days | £21.83 |
| 10 Days | 10 Days | £23.20 |
| 11 Days | 11 Days | £25.25 |
| 12 Days | 12 Days | £27.30 |
| 13 Days | 13 Days | £28.67 |
| 14 Days | 14 Days | £30.04 |
| 15 Days | 15 Days | £32.09 |
| 16 Days | 16 Days | £33.46 |
| 17 Days | 17 Days | £34.15 |
| 18 Days | 18 Days | £35.51 |
| 19 Days | 19 Days | £37.57 |
| 20 Days | 20 Days | £38.94 |
| 21 Days | 21 Days | £40.30 |
| 22 Days | 22 Days | £40.99 |
| 23 Days | 23 Days | £41.67 |
| 24 Days | 24 Days | £42.36 |
| 25 Days | 25 Days | £43.04 |
| 26 Days | 26 Days | £43.73 |
| 27 Days | 27 Days | £44.41 |
| 28 Days | 28 Days | £45.09 |
| 29 Days | 29 Days | £45.78 |
| 30 Days | 30 Days | £47.15 |
Every plan is prepaid, data-only, and delivered instantly by QR code with no activation fee. Pick the data size that matches your trip length. Maps, messaging, and a bit of browsing are light on data; video streaming and hotspotting a laptop are heavy. If you are unsure, start smaller - you can always buy a top-up rather than pay for gigabytes you never use. A week of typical sightseeing use in Paris sits comfortably in the 3GB to 5GB range.
Which Network Your France eSIM Uses
A France eSIM connects to a major French mobile network as a roaming partner. France's three big networks are Orange, SFR, and Bouygues Telecom, all of which run dense 4G and expanding 5G across Paris and the CDG area. Your eSIM connects to one host network - it does not hop between all three picking the strongest signal in real time, and no honest travel eSIM does. What matters in practice is that the host network has strong coverage where you actually are, and inside CDG and across central Paris that coverage is excellent.
You will have signal on the jet bridge, throughout the terminals, on the RER platforms, and in the tunnels and stations most of the way into the city.
How to Install Your eSIM Before You Leave Home
Do this over your home Wi-Fi a day or two before departure. Installation needs internet; activation later at CDG does not.
- Buy your France plan and receive the QR code by email within minutes.
- Scan it: on iPhone open Settings > Mobile Service > Add eSIM > Use QR Code; on Android open Settings > Network & internet > SIMs > Add eSIM. Our iPhone and Android guides have step-by-step screenshots.
- Label the new line "France" so it is easy to find.
- Leave it switched off until you land. Keep your home SIM as the active line so you still get messages on the way to the airport.
Full details, including how to check your phone is eSIM-ready, are in our installation and activation guide, and you can confirm your model on the compatible devices list. In short: iPhone XR and newer, Samsung Galaxy S20 and newer, and Google Pixel 3 and newer all support eSIM, and the phone must be network-unlocked.
Switching It On When You Land at CDG
As the plane reaches the gate, open your settings and do three things:
- Turn on the France eSIM as your mobile data line.
- Enable Data Roaming for that line. This sounds wrong but it is correct - a travel eSIM is technically roaming on its host network, and it will not connect without this toggle on. It does not trigger any charge from your home network because your home line stays off for data.
- Turn off mobile data on your home SIM so nothing accidentally connects at home-network roaming rates.
Within a few seconds you should see the network name and a 4G or 5G icon. You are now online for everything you need before you have even reached the taxi rank.
Free Terminal Wi-Fi as a Backup
CDG offers free Wi-Fi throughout its terminals (look for the "WIFI-AIRPORT" network and accept the portal terms). It is genuinely useful as a fallback - if you forgot to install your eSIM at home, the terminal Wi-Fi is enough to buy one, receive the QR code, and scan it right there in arrivals. That said, airport Wi-Fi portals can be slow and drop as you move between zones, which is exactly why installing at home first is the calmer option.
Getting From CDG Into Central Paris
Once you are connected, choosing how to reach the city is easy. Your three main options:
- RER B train is the fastest value option into central Paris (Gare du Nord, Châtelet, Saint-Michel), typically around 35 to 45 minutes. With your eSIM live you can check live departure boards and platform changes, and coverage holds through most of the underground stretch.
- Roissybus no longer runs: Île-de-France Mobilités ended the CDG–Opéra shuttle on 1 March 2026. For a single ride with luggage, use the RER B or a taxi.
- Taxi or rideshare from the official ranks. Paris taxis charge a fixed flat fare between CDG and central Paris, which protects you from meter surprises. Rideshare apps work well too, and being online means you can request the car and message the driver from the moment you exit customs.
Whichever you pick, having data on arrival is what makes it smooth - live transit times, ticket machines that occasionally need an app, and door-to-door navigation to your hotel.
What About Phone Calls?
eSIMpass plans are data-only, so they do not come with a French phone number. For nearly every traveller this is a non-issue: make and receive calls over WhatsApp, FaceTime, Messenger, or Signal, all of which run on data. If you specifically need a traditional number - say, for a restaurant to call you back - use dual SIM: keep your home SIM active for calls and texts while the France eSIM carries your data. Weigh the trade-offs in our eSIM vs roaming comparison.
Planning More of Europe?
If Paris is one stop on a wider trip, a single France plan may not be the most efficient choice. A regional plan that covers many European countries on one eSIM can be simpler than buying a separate plan per country. See our best eSIM for Europe guide to decide between a France-only plan and a Europe-wide one, and our travel eSIM overview for multi-country trips beyond Europe.
eSIM vs Roaming vs Local SIM at CDG
eSIM vs Roaming vs Local SIM
Compare your options for France
| eSIMpass | Roaming | Local SIM | |
|---|---|---|---|
| Setup time | Instant | None | 30-60 min |
| Cost per GB | ~$2-5 | $10-50+ | ~$3-8 |
| Surprise fees | None | Likely | Unlikely |
| Buy before trip | Yes | Yes | No |
| Keep your number | Yes | Yes | No |
| Speed | 4G/5G | 4G/5G | 4G/5G |
For a short Paris trip the eSIM wins on the two things that matter at an airport: it is cheaper per gigabyte than home-network roaming, and it is already installed before you land, so you skip the counter entirely.
Frequently Asked Questions
Can I buy the eSIM after I land at CDG?
Yes. Connect to the free terminal Wi-Fi, buy your France plan, and the QR code arrives by email within minutes so you can install it in arrivals. Installing at home before you fly is still easier and means you land already connected.
Do I need to set data roaming on for it to work?
Yes. A travel eSIM roams on its French host network, so the roaming toggle must be on for that eSIM line. It does not cause any charge from your home network as long as your home SIM's data is switched off.
Which network will I connect to at the airport?
A major French network - the country's big three are Orange, SFR, and Bouygues Telecom. Your eSIM uses one host network, all of which have strong 4G and 5G coverage across CDG and central Paris.
Will the eSIM work on the RER B into Paris?
Yes. Coverage holds across CDG, on the RER platforms, and through most of the route into central Paris. You may see brief drops in deep tunnel sections, which is normal for any mobile network.
Does it include a French phone number for calls?
No, the plans are data-only. Make calls over WhatsApp, FaceTime, or similar apps, or keep your home SIM active in dual-SIM mode if you need your usual number.
Which phones can use it?
Any eSIM-capable, network-unlocked phone: iPhone XR and newer, Samsung Galaxy S20 and newer, and Google Pixel 3 and newer. Check the compatible devices list if you are unsure.
Land at Paris CDG already connected
Install a France eSIM at home, switch it on as you taxi to the gate, and skip the airport SIM counter entirely. Instant QR delivery, no activation fee.
Get Your France eSIM
