-5% on your order in the app
To avoid international roaming charges, turn off Data Roaming on your home line before you land (on iPhone: Settings > Cellular > Cellular Data Options), then get data another way: a travel eSIM, a local SIM, Wi-Fi, or your carrier's day pass for a very short trip. Your number still receives calls and texts, which your carrier may bill.
Key takeaways
- Turning off Data Roaming on your home line costs nothing and blocks the expensive part before the plane lands
- Carrier day passes start on their own: Verizon's TravelPass session can be triggered by background data once roaming is on
- A travel eSIM had a global median of $3.11 per GB on the 3 September 2026 Price Index snapshot, prepaid and capped by design
- EU plans roam at home rates in the EU, the EEA, Moldova and Ukraine, but not on satellite networks aboard ships and planes
- Trip length decides the rest: a day pass for one to three days, a travel eSIM beyond that, a local SIM for long stays in one country
Turn Off Data Roaming on iPhone and Pixel
This is the free fix, and it has to happen before your phone finds a foreign network. On iPhone, Apple's iPhone guide puts the switch under Settings > Cellular > Cellular Data Options, where you turn Data Roaming off. If you have two lines, tap your home line under Settings > Cellular first and set Data Roaming there.
On a Pixel, go to Settings > Network & internet > SIMs and turn Roaming off, as shown on Google's Pixel help page. On other Android phones the toggle sits in the mobile network settings. Airplane mode also stops roaming, but it cuts everything at once; turning off data roaming alone keeps Wi-Fi, calls and texts working.
Two more iPhone settings matter when you travel with two lines. Leave Allow Cellular Data Switching off, because it lets the phone use data from the other line depending on coverage. And Low Data Mode, under Cellular Data Options > Data Mode, pauses background tasks away from Wi-Fi.
how to turn off data roaming on an iPhone — step by step, including the setting Apple moved
How a Carrier Day Pass Starts Without You Noticing
Day passes are the carriers' answer to bill shock, and they have their own trap. According to Verizon's TravelPass FAQ, a 24-hour session starts automatically when you make or answer a call, send a text or use data in a TravelPass country, and once data roaming is on, background data alone can start it. Each session costs $12 in most countries and $6 in Mexico and Canada, with 5 GB of high-speed data before speeds drop to 3G.
For Verizon customers, avoiding the charge comes down to the same switch: with data roaming off and no calls or texts, no session starts. If you do want TravelPass for a short trip, Verizon charges only on the days you use the phone abroad. With two numbers on one phone, each line is charged according to its own international plan.
Roaming Inside Europe: Free, With Limits
On a plan from an EU country, roam like at home means no extra charge for calls, texts and data in other EU countries, as well as Iceland, Liechtenstein, Norway, Moldova and Ukraine, within your operator's fair use policy. The EU's Your Europe page adds two protections and one gap. Your operator must apply a cut-off once extra roaming charges reach €50, or another limit you choose, and you can then ask to continue. But on ships and planes, if service comes through a satellite system, EU rules no longer apply and there are no price caps: switch off roaming or use airplane mode on board.
Outside those countries, roam like at home does not apply, although some operators extend it, so check your contract before you go.
Travel eSIM: Data at the Local Market Price
For a trip longer than a long weekend, a travel eSIM is usually the paid option that costs least. You buy a data plan for the destination, install it over Wi-Fi at home, and it activates when it connects to a network on arrival. Your own SIM stays in the phone for calls and texts, with its data roaming off.
On the 3 September 2026 snapshot of the Simsima eSIM Price Index, the global median was $3.11 per GB, from $0.74 in Malaysia to $16.62 in French Polynesia. The plan is prepaid: when the data runs out, it stops, and you top it up rather than receiving a bill.
what data costs in 240 countries — median and floor prices per destination, updated daily
Local SIM, Wi-Fi Calling and Pocket Wi-Fi
A local SIM often gives the most data for the money on a long stay in one country. The costs are elsewhere: a store or airport counter, and in many countries an ID check. Apple's travel eSIM guide notes you may be asked for a passport, depending on local regulations. You also need a free SIM slot or eSIM space to keep your own number on the phone.
Wi-Fi Calling routes calls on your own number through any Wi-Fi network if your carrier supports it. On iPhone, it is under Settings > Cellular > Wi-Fi Calling, choosing the line first if you have two. Check your carrier's terms before calling abroad: Verizon, for instance, bills Wi-Fi calls to countries other than the US at international long distance rates.
A pocket Wi-Fi rental still suits groups sharing one connection, or devices without cellular. For one traveler with a recent phone, the eSIM does the same job with nothing to collect, charge or return.
pocket Wi-Fi compared with the alternatives — where renting a hotspot still holds up
Choosing by Trip Length and Route
- One to three days, one country: your carrier's day pass, if it covers the destination
- Four days to a month, one or two countries: a country travel eSIM
- Three countries or more: a regional plan, so one eSIM covers the route
- Several months in one place: a local SIM, or a long-validity eSIM if you would rather skip the paperwork
- Calls on your usual number: keep the home line on for voice, turn off its data roaming, and add Wi-Fi Calling
Simsima recommendation
See what data costs where you are going
Simsima prices against the local market in 190+ countries and regions, with plans you install before you take off.
If you are weighing an eSIM against your carrier's roaming plan specifically, rather than surveying all the options, the direct comparison lives in its own guide.
travel eSIM against carrier roaming, side by side — including the two cases where roaming still wins
Frequently asked questions
Off on your home line whenever you are abroad, unless you have chosen to pay for your carrier's roaming. On a travel eSIM line, on: it needs data roaming to connect, and it is prepaid, so it cannot run up a bill.
They depend on your carrier and destination. Verizon's TravelPass, for example, costs $12 a day in most countries and $6 in Mexico and Canada. Without a pass, data is billed per use at your carrier's international rates, which is where large bills come from.
Yes, because it disconnects the phone from cellular networks. It also stops calls and texts. Turning off data roaming is usually the better setting: it blocks the data charges and keeps everything else working.
Inside the EU and EEA on a European plan, receiving calls and texts costs nothing extra. Elsewhere it depends on your carrier, so check its roaming rates before you travel.
Contact your carrier first and ask for the charges to be reviewed. On an EU plan, check whether the €50 roaming cut-off was applied; if your operator's answer does not satisfy you, the EU points to your national telecoms regulator.
#Roaming#Travel eSIM#Guide#Costs
Dimitri MorvanFounder
Founder of Simsima. A passionate traveler based in Barcelona, he helps travelers stay connected without breaking the bank on roaming fees.
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