Status: checked against official sources; automated independent review
FREQUENT FLYER GLOSSARY
What is mobile roaming?
Mobile roaming is a phone's use of a mobile network other than its home network while the user is abroad, so that calls, text messages and data keep working on a visited operator's network. What it costs depends on the home plan and the destination, and inside the European Union EU rules limit what an operator may charge for roaming in another EU country. [3] Under the EU's "roam like at home" regime, minutes of calls, SMS and data used in any of the 27 EU countries, plus Iceland, Liechtenstein, Norway, Ukraine and Moldova, are charged the same as at home. [2]
Facts checked: 18 October 2026
Key takeaways
- Roam like at home is activated automatically when a traveller uses a phone in any of the 27 EU countries, Iceland, Liechtenstein, Norway, Ukraine and Moldova, and calls, SMS and data are charged as at home. [2]
- The regime is regional, not global: it does not apply to the United Kingdom under EU rules, although some operators have chosen to keep the benefits, and satellite networks used on board planes and boats are outside it. [2]
- Fair-use data limits, a four-month stay test and per-gigabyte surcharges can still produce extra charges for some travellers. [2]
What does mobile roaming mean in practice?
Roaming begins when a phone leaves the coverage of the network it normally uses and registers on a visited network instead. The visited operator carries the calls, messages and data, the home operator bills the customer for them, and the subscriber keeps the same phone number throughout, which is what separates roaming from buying a separate SIM or data plan for a trip. Because both the home plan and the rules of the destination matter, the same handset can be cheap to use in one country and expensive in the next.
Within the European Union, EU rules on roaming mean there is a limit to what an operator can charge a customer who uses a mobile phone in another EU country. [3] The European Union's consumer advice service, Your Europe, carries a dedicated guide on roaming with a mobile phone in the EU. [1]
Where does "roam like at home" apply?
The mechanism is called "Roam Like At Home" (RLAH) and is automatically activated whenever a traveller uses a phone abroad in any of the 27 EU countries, as well as Iceland, Liechtenstein, Norway, Ukraine and Moldova. [2] In those destinations the minutes of calls, SMS and data used abroad are charged the same as at home. [2] The European Commission's history of the policy dates the end of extra roaming charges within the EU to 15 June 2017 and an extension of the regime with additional benefits to 1 July 2022. [2]
| Destination | Does roam like at home apply? |
|---|---|
| 27 EU countries | Yes, automatically [2] |
| Iceland, Liechtenstein, Norway | Yes, on the same automatic basis [2] |
| Ukraine and Moldova | Yes, as of 1 January 2026 [2] |
| United Kingdom | No under EU rules; some operators have chosen to keep the benefits, so check with your operator before travelling [2] |
| Satellite networks on board aircraft or boats | No, these are not covered and usually carry high surcharges [2] |
The extension to Ukraine and Moldova means EU citizens travelling to either country can use voice, SMS and data at domestic prices without additional roaming charges, and the same applies to Ukrainian and Moldovan citizens roaming in EU member states. [2]
What fair-use limits and surcharges apply to EU roaming?
Where a plan offers unlimited data, or data priced below the maximum wholesale cap, the operator may apply a fair-use limit on roaming data. [2] The operator has to say in advance what the limit is, must alert the customer on reaching 80% of it, and is expected to set a limit high enough to cover most, if not all, roaming needs; the stated purpose is to keep roaming available without raising domestic prices. [2] If the limit is reached, data can continue for a very small fee. [2]
The size of the limit is set by a regulated formula based on the monthly price of the contract: twice the price of the mobile bundle excluding VAT, divided by the regulated maximum wholesale cap per gigabyte, gives the roaming data limit in gigabytes. [2]
| Item | Figure |
|---|---|
| Maximum wholesale price per GB paid to the foreign operator | €2/GB plus VAT as of 2022, falling to €1 in 2027 [2] |
| Maximum fee for continuing data beyond a fair-use limit | No more than €2/GB plus VAT from 2022, falling to €1 in 2027 [2] |
| Fair-use alert | At 80% of the stated limit [2] |
| Spend notifications in a monthly billing period | At €50, then again at €100 [2] |
Where a fair-use limit or a financial limit applies, the operator should notify the customer before the limit is reached and explain how to continue using roaming, and customers may opt out of and back into that cut-off mechanism by telling their operator. [2] Service quality should match home, including speed and access to 5G where the customer normally has 5G at home, although a weaker visited network can make that impossible; the operator should do its best where technically possible and must explain in the contract, and publicly, how roaming may differ. [2] The Commission points travellers to netBravo, a tool it developed for testing network quality. [2]
What are the exceptions and limitations?
- Long stays. Roam like at home is intended for periodic travelling and cannot be used permanently; if a customer stays and uses roaming in another EU country longer than in the home country over a period of four months, the operator may make contact and may apply a surcharge. [2]
- Planes and boats. A phone on open water or in flight may connect to a non-terrestrial network such as an on-board satellite service, which is not covered by roam like at home and usually has high surcharges; an automatic message should warn of the connection, and if use continues and additional charges reach €50, or another predefined limit, mobile services stop automatically. [2] Operators may offer services such as the option to opt out of roaming on planes and boats, and on-board connectivity is covered in more detail under in-flight wifi. [2]
- Value-added numbers. Calls to customer service lines, and to airline and insurance helplines, are usually subject to higher charges when phoned from abroad, and operators must inform customers which types of number may cost extra, both in the contract and in the SMS sent on crossing a border. [2]
- Information on arrival. Crossing a border should trigger an automatic message with basic roaming information, including any fair-use data limits and the services that are not free of charge. [2] By June 2023 travellers should also receive a message reminding them about the 112 emergency number and about alternative means of reaching emergency services, such as real time text or apps, where a voice call to 112 is not possible. [2]
- Disputed charges. Extra charges should first be contested with the operator, which should have a complaints procedure, and if the operator persists the case can be referred to the responsible national telecoms agency. [2]
How does roaming compare with a travel eSIM or a local SIM?
Roam like at home settles the price question only inside the area listed above, so the first check for any trip is whether the destination sits inside it; where it does not, the terms of the home plan decide, which is why the Commission advises travellers to their operator before going to the United Kingdom. [2] The second check is whether the connectivity involved is excluded even inside that area, as satellite links on planes and boats are. [2]
A travel eSIM or a local SIM is a separate arrangement with the provider that sells it, and a traveller weighing one against roaming is really comparing that provider's terms with the home plan's terms under the rules described here. The practical questions are whether the destination is inside the roam-like-at-home area, whether a fair-use limit or the four-month stay test could affect a long stay, and whether the trip relies on on-board connectivity that roam like at home excludes. [2] The travel eSIM setup checklist covers preparing a data plan before departure.
Frequently asked questions
Is mobile roaming free in the EU?
It is charged as at home rather than being free: calls, SMS and data used in the 27 EU countries, Iceland, Liechtenstein, Norway, Ukraine and Moldova cost the same as on the domestic plan. [2] Extra charges can still arise through fair-use data limits and the four-month stay test. [2]
Does roam like at home work in the United Kingdom?
No under EU rules, because the regime does not apply there following the UK's departure from the EU, although some operators have chosen to keep the benefits. [2] Travellers should check with their operator before travelling to the UK. [2]
How long can I keep roaming in another EU country?
Roam like at home is meant for periodic travel, and if roaming use in another EU country exceeds use in the home country over a period of four months, the operator may make contact and may apply a surcharge. [2]
What happens if my phone connects on a plane or a cruise ship?
Those connections can run through a non-terrestrial, satellite-based network that roam like at home does not cover and that usually carries high surcharges, and services stop automatically once additional charges reach €50 or another predefined limit. [2]
Why is roaming data sometimes limited or slower abroad?
Operators may cap roaming data under a fair-use rule and must warn at 80% of that limit, and network quality abroad can be lower than at home, though the operator should match home quality where technically possible. [2]
Sources
Sources checked on 18 October 2026. Only the EU-wide roaming rules published by the European Union and the European Commission are covered here; the retail roaming tariffs of individual mobile operators, and roaming rules outside the EU roaming area, are outside its scope.
- Your Europe: roaming with a mobile phone in the EU, checked 18 October 2026
- European Commission: roaming, connected anywhere in the EU at no extra charge, checked 18 October 2026
- Your Europe: internet and telecoms consumer rights, checked 18 October 2026