Eurostar to Paris, the ferry to Calais or a flight to Nice? See what your UK network charges in France and what the same trip costs with a travel eSIM.
Graba SIM eSIM for Francefrom £2.75prepaid, no contract, in pounds
5GB for 30 days£4.49enough for most two-week trips
Local networkOrange5G where the network offers it
QR code by emailinstall before you fly
Keep your UK numberdata-only eSIM
24/7 live chatin the Graba SIM app
Pay your way
Before you buy: straight answers
When does an eSIM beat my plan’s EU roaming?
When your network charges a daily fee for France, caps how much data you can use abroad, or your trip is long enough for a fair-use limit to apply. If France is free on your plan with plenty of data, you may not need one.
Will it work on the Eurostar?
It connects once the train reaches France. In the tunnel there’s no signal on any network.
What about the ferry?
Turn data roaming off for your UK SIM before you sail. At sea your phone can join the ship’s network, which isn’t covered by EU roaming or by the eSIM.
What your trip to France costs
Set your trip length and how you use your phone. eSIM bars are data-only plans that cover the whole trip; UK network bars use your UK allowance and include calls and texts. EE and O2 don’t publish a price for France that we can check, so they aren’t charted.
For each trip we pick the current plan that costs the least while lasting the whole trip and gives about 0.3 to 0.7 GB a day, enough for maps, messages and social media. A plan may last longer than the trip. Everyone uses data differently, so check your phone’s recent data use. “Best value” only appears when that plan also costs the least per GB of all the plans that fit.
Arriving in France
CDG Paris Charles de Gaulle
ORY Paris Orly
NCE Nice Côte d’Azur
LYS Lyon
BOD Bordeaux
MRS Marseille
Eurostar arrives at Paris Gare du Nord; ferries land at Calais, Dunkirk, Caen, Cherbourg and Saint-Malo.
Signal where people go
Paris
Strong signal across the city and at most Métro stations.
The French Alps
Chamonix, Val Thorens and Méribel villages are well covered; high slopes and off-piste areas are patchier.
The Riviera
Good from Nice to Cannes. Monaco has its own networks and is not part of France.
Normandy and Brittany
Popular with drivers off the ferry. Good in towns, patchier on the coast and in the countryside.
Provence and the Dordogne
Fine in villages; gorges and rural roads can have gaps.
Networks our France plans use:Orange
Your UK network in France
France is in the EU, so check your plan first: it may already include roaming there. What each network publishes for France, and a week of it:
Network
What it charges
7 days
Compare
EE
Varies by plan EE doesn’t publish one price for every country: it prices roaming by destination, plan and start date. Check EE’s roaming tool for France.
O2 Europe Zone O2 treats its Europe Zone separately from O2 Travel, and what you pay in France depends on your plan. Check your plan in My O2 before you go.
Go Roam in Europe £2.75 a day in Go Roam in Europe (£2 on plans from 2021 to 2025), or £12 for a 7-day pass. Unlocks your UK calls, texts and up to 12 GB of your UK data.
Sources:EE (checked 29 October 2026) · O2 (checked 29 October 2026) · Vodafone (checked 6 November 2026) · Three (checked 6 November 2026). Prices change; check before you buy.
Graba SIM vs Airalo: the same plans, side by side
Plans with exactly the same data allowance and validity for France, both data-only and priced in pounds. Coverage and networks can differ, so check the plan details before you buy.
On the ferry, turn off data roaming on your UK SIM. At sea, phones can join the ship’s maritime network, which UK networks charge separately and at high rates.
On Eurostar your phone moves from a UK network to a French one around the Channel Tunnel. Switch mobile data to the eSIM once you are in France.
France is in the EU, so your UK plan may already include roaming there, free or for a daily fee. Check it before you buy an eSIM.
Crossing a border from France?
A France plan covers France only. This is what your UK network charges next door:
Check your phone is unlocked and supports eSIM on our compatibility page.
Install the plan at home on Wi-Fi with our iPhone or Android guide.
When you land at Paris Charles de Gaulle, switch mobile data to the eSIM and turn on data roaming for it only.
Questions about France
Do I need an eSIM for France if my plan includes EU roaming?
Not if your plan includes France at no extra cost and its roaming allowance is enough for your trip. An eSIM helps if your network charges a daily fee, or caps how much data you can use abroad.
Does a France eSIM work in Monaco or Switzerland?
A France-only plan covers France. Monaco and Switzerland are separate countries with their own networks, so check the plan’s coverage list, or choose a Europe plan for a trip that crosses borders.
Is a travel eSIM cheaper than roaming in France?
For a week with about 0.7 GB a day, the Graba SIM 5GB, 30 days plan costs £4.49, less than each published UK network option for France (the lowest is Three at £12.00). UK network prices include calls and texts; the eSIM is data only.
What do UK networks charge in France?
EE: EE doesn’t publish one price for every country: it prices roaming by destination, plan and start date. Check EE’s roaming tool for France. O2: O2 treats its Europe Zone separately from O2 Travel, and what you pay in France depends on your plan. Check your plan in My O2 before you go. Vodafone: £16 for an 8-day pass or £21 for 15 days in Zone B. Uses your UK calls, texts and data, up to 25 GB a month. Three: £2.75 a day in Go Roam in Europe (£2 on plans from 2021 to 2025), or £12 for a 7-day pass. Unlocks your UK calls, texts and up to 12 GB of your UK data.
What if something goes wrong?
Live chat in the Graba SIM app is open 24/7. Email and contact-form requests are answered Monday to Friday.