The O2 Travel add-on is O2's roaming option for using your mobile phone abroad without changing your SIM card, but is it really better than buying a travel eSIM? In this review, we analyze what it includes, how much it actually costs, and in which cases it's worth it or when it's better to look for a cheaper alternative for your vacation.
What is the O2 Travel add-on
O2 Travel is a roaming add-on that applies a daily flat rate: on the day you use your mobile phone abroad, you pay a fixed fee and use your domestic allowance, instead of being charged per megabyte separately. It's O2's way of avoiding surprise roaming bills outside the European Union.
Within the EU, the story changes: due to the European "roam like at home" regulation, you browse with your included data without extra charges, so the add-on only comes into play when you cross into destinations outside the European area, such as the United Kingdom, Switzerland, the United States, Morocco, or Asia. That's where O2 Travel tries to make things easy for you in exchange for a daily price. If you still have doubts about the concept, it would be useful to review what roaming is before deciding.
Price and how billing works
The model is simple: you pay a daily fee (usually in the range of €10-20 per day depending on the zone) and for that day you have a reasonable use package of data, minutes, and SMS. You are only charged on the days you actually use your mobile phone abroad; if you don't turn it on, you don't pay.
The problem becomes apparent when you calculate for a long trip. Ten days abroad with a daily rate of €15 means €150 just for connection, and many add-ons include a "courtesy" data limit which, if exceeded, reduces speed or makes consumption more expensive. For stays of one or two weeks, that cost quickly adds up compared to a fixed rate.
Traveler's tip: only activate the add-on if you are going to a specific destination for a few days. For trips of more than three or four days outside the EU, a fixed data plan almost always wins.
If you find roaming expensive, you're not alone: we review the complete pattern in why roaming is so expensive and its alternatives.
Covered zones and countries
O2 Travel divides the world into zones, and the daily price depends on where you travel. Closer zones (UK, Switzerland, Andorra, or the Balkans) usually have the lowest fee, while distant destinations like the United States, Japan, or Thailand fall into more expensive zones.
- Non-EU Europe: UK, Switzerland, Andorra, Turkey… lowest daily fee.
- America and Asia: United States, Mexico, Japan, Thailand… highest daily fee.
- Distant destinations: some countries are outside the add-on and are charged at the standard roaming rate, which can be very high.
Before traveling, it's advisable to check which zone your destination falls into, because the price difference between one zone and another can double the daily cost. This detail about the zone is what confuses many people when they see their bill upon returning.
How to activate (and deactivate) O2 Travel
Activation is done from the customer area or the O2 app, and in many cases the add-on is applied automatically as soon as your mobile connects to a foreign network. This is convenient, but it's also a source of surprises: it can activate without you realizing it as soon as you land.
To maintain control, it's advisable to review two settings before leaving. First, decide whether you want the add-on active or prefer to deactivate data roaming; our guide on how to activate roaming and data roaming explains it step-by-step. Second, if you are going to use another connection solution, consider how to avoid roaming completely so that O2 doesn't charge you anything upon arrival.
When you return home, check in the app that the add-on has been deactivated to avoid carrying over charges for a future trip you weren't expecting.
Advantages and disadvantages
The great advantage of O2 Travel is its convenience: you keep your number, your calls, and you don't have to install or configure anything new. For a short trip without wanting complications, it's a defensible option. That's its true value.
The downsides are the accumulated cost and lack of control over spending. As it's a daily fee, the more days you spend abroad, the more you pay, without a fixed cap like a data plan. In addition, the included data is usually limited, and exceeding it triggers surcharges or speed reductions just when you most need the map or translator.
- Pros: same number, zero configuration, and charged only on days of use.
- Cons: daily price that skyrockets on long trips, limited data, and reliance on your operator for each destination.
O2 Travel vs. a travel eSIM
Here's the comparison that matters. A travel eSIM is a second profile you install on your mobile with a fixed data plan for your destination, without touching your main SIM card. You pay once for the gigabytes and validity you need, and you know the total before leaving home.
| Criteria | O2 Travel Add-on | Travel eSIM |
|---|---|---|
| Pricing Model | Daily fee | Fixed price per plan |
| Cost for 10 days outside the EU | Can exceed €100-150 | From a few euros, depending on country |
| Spending Control | Low (accumulates) | High (paid in advance) |
| Activation | Automatic or in the app | Scan a QR, 1 minute |
| Your usual number | Yes | Yes, for WhatsApp and data calls |
| Coverage | According to O2 zones | 218 destinations |
The key difference: with an eSIM, you know the total price before traveling and you don't depend on your operator's zones. You can see the detailed showdown in eSIM vs. roaming.
Who benefits from each option?
There's no absolute winner: it depends on your trip. O2 Travel makes sense for a very short getaway, one or two days outside the EU, where you value not having to configure anything and will use your phone little. For that profile, convenience outweighs the price.
If your trip lasts more than three days, you're going to an expensive destination (United States, Japan, Southeast Asia) or you want to know exactly how much you're going to pay, the eSIM clearly wins. You install the profile in a minute, keep your number for WhatsApp, and arrive with active data without depending on O2's bill. If you have another O2 line, you may also be interested in comparing it with our guide on O2 roaming and the eSIM for O2 customers.
Frequently asked questions
How much does the O2 Travel add-on cost per day?
It usually ranges from €10 to €20 per day depending on the destination zone, and is only charged on days you use your mobile abroad. On long trips, this cost accumulates quickly, so it's advisable to add up the days before deciding if it's worth it compared to a fixed rate.
Does O2 Travel work within the European Union?
Within the EU, you browse with your included gigabytes due to the "roam like at home" regulation, without extra charges. The O2 Travel add-on is designed for destinations outside the European area, such as the United Kingdom, Switzerland, the United States, or Asia, where standard roaming would be much more expensive.
Does it activate automatically upon arrival abroad?
In many cases, yes: the add-on can be applied automatically as soon as your mobile connects to a foreign network. That's why it's advisable to check your roaming settings before leaving, so it doesn't activate unexpectedly and incur a charge you hadn't anticipated.
Is O2 Travel better or a travel eSIM?
For a one or two-day getaway with light usage, the add-on is convenient. For trips longer than three days or expensive destinations, an eSIM is usually much cheaper and gives you a fixed price before traveling, with no surprises on your bill or reliance on the operator's zones.
Can I use my same number with an eSIM?
Yes. The eSIM is installed as a second profile only for data, and your main SIM card remains active for receiving calls and SMS. WhatsApp and data calls still use your usual number, so you don't lose contact with anyone while taking advantage of the cheaper rate.
Conclusion
O2 Travel works for short getaways where you prioritize not configuring anything, but its daily fee model makes it expensive as soon as the trip lengthens or the destination moves to a higher zone. If you're looking for spending control and a fixed price, a travel eSIM installed in 1 minute is usually the smartest option. Compare both before your next flight and check out all PuraSim eSIM plans to travel with data from the moment you land.
