O2 Travel Inclusive Zone: Countries, Activation & Costs

Most travellers assume their UK mobile plan just works abroad—until the bill arrives. O2’s roaming setup has a few quirks worth knowing before you land, especially if you want to avoid eye-watering data charges. This guide cuts through the jargon: which zones you actually get, what you’ll pay, and exactly how to flip the switch before you go.

Destinations outside Europe: 27 · Ultimate Zone Destinations: 75 · Inclusive Roaming: Unlimited minutes, texts, data

Five roaming tiers, two pricing models, and a handful of eligibility windows—O2’s international setup rewards those who read the fine print. Here’s what the specs actually mean for your next trip.

What countries are in O2’s Travel Inclusive Zone?

O2 organises its roaming into zones that correspond to how your plan is billed. The standard Inclusive Zone covers 27 destinations outside Europe, while the Ultimate tier extends that to 75 destinations—and the same 75 apply to the Bolt On add-on. The USA is included in both the standard 27 and the Bolt On list, which matters for anyone planning a US trip.

Europe Zone itself handles 48 European destinations with your normal UK data allowance, subject to a 25 GB fair use cap. Morocco sits outside that zone despite its geographic proximity, so travellers there will need the Bolt On. O2 Travel Bolt On covers USA, Canada, Australia, New Zealand, and Mexico among its 75 destinations.

Destinations outside Europe

The 27-destination Inclusive Zone includes popular long-haul spots where Volt and Plus customers get free roaming with unlimited usage. Turkey, UAE, South Africa, Thailand, and over 20 Caribbean islands fall under the Ultimate tier. The Bolt On extends identical coverage to anyone on a qualifying plan or willing to pay £7 daily.

O2 Plus Plan countries

Plus Plans with 12-month SIM Only at 100GB or above qualify for free Inclusive Zone roaming on or after 3 September 2020. Mid-tier upgrades to 30–99GB received eligibility from 5 November 2020, though those customers access the zone as an Extra rather than a core feature.

Travel Inclusive Zone Ultimate countries

Ultimate Plans unlock the full 75-destination map. Turkey and the UAE—often excluded by competitors—sit inside this zone. The Bolt On mirrors this destination list exactly at the same price for non-eligible customers.

How to activate O2 travel inclusive zone?

Eligible plans don’t require you to lift a finger—the Inclusive Zone activates automatically when you land in a qualifying destination. For Bolt On users, activation happens through the My O2 app or by sending TRAVEL to 23336 before departure. The Bolt On only charges on days you actually use your phone, not for full calendar days.

Activation steps for Inclusive Zone

• Check your plan eligibility on O2.co.uk or via My O2 app
• For Bolt On: open My O2, select “Manage Bolt Ons,” then add O2 Travel
• Alternatively: text TRAVEL to 23336 to trigger the add-on link
• Confirm roaming is enabled in phone settings before travel
• Buy the bolt-on before departure—airport activation reportedly fails (Yesim)

Do I need to activate roaming on O2?

Most newer tariffs have roaming switched on by default, but manually confirming before departure avoids nasty surprises. Activate roaming in your phone’s settings under Mobile Data > Roaming. If your plan isn’t eligible for Inclusive Zone, you’ll land on standard rates—£3 per minute for calls and £7.20 per MB for data in the USA without a bolt-on.

How much does an O2 travel inclusive zone bolt-on cost?

The O2 Travel Bolt On costs £7 per day for unlimited calls, texts, and data across 75 destinations. This pricing was current as of March 2026 according to available sources. Without the bolt-on, standard roaming in the USA runs £3 per minute for calls and £7.20 per MB for data—fees that add up fast on a two-week trip.

Bolt-on pricing details

The per-day model means you’re only charged on days with active usage, not full 24-hour periods. A weekend trip with light usage could cost £14 total, compared to hundreds on standard rates. The Bolt On includes unlimited minutes back to the UK and within your destination, but calls to other countries still incur standard roaming charges even with the add-on active.

How to get the O2 Travel Bolt On

Add the Bolt On via My O2 under “Manage Bolt Ons,” or wait for the link O2 sends when you land in a roaming destination. Note that buying at the airport often fails—pre-departure activation is the safer path.

Do I need a special O2 plan for the travel zone?

Inclusive Zone access depends on your tariff and purchase date. Volt and Plus Plans include it automatically. SIM Only customers need at least 100GB on a 12-month contract bought from 3 September 2020 onward, or upgrades to 30–99GB from 5 November 2020. Pay As You Go customers don’t qualify—standard roaming rates apply.

Eligible plans like Volt and Plus

Volt and Plus Plans are O2’s flagship roaming-ready tariffs. Both include the 27-destination Inclusive Zone as standard, with Ultimate Plans stepping up to 75 destinations. If you switch to an eligible plan mid-contract, the Inclusive Zone activates from your next bill date.

12-month SIM Only 100GB+

12-month SIM Only tariffs at 100GB or above bought from September 2020 onward qualify for the full Inclusive Zone. Smaller data tiers received eligibility as an Extra from November 2020, meaning roaming is added but billed separately. 30-day SIM Only plans don’t qualify—those customers rely on Bolt On pricing.

Is O2 roaming free in Ireland?

Ireland falls within the Europe Zone, so UK-based allowances apply with a 25 GB fair use limit. That means inclusive calls and texts back to the UK and within Ireland, plus your normal UK data pool up to 25 GB. O2 remains the only major UK network not reintroducing EU roaming charges post-Brexit, which puts Ireland in the same bucket as other European destinations.

Roaming in Ireland and UK data usage

Your UK plan’s minutes, texts, and data (up to 25 GB) work in Ireland without additional cost. Beyond that limit, standard roaming rates apply. There’s no separate Ireland bolt-on—the Europe Zone handles it as part of your standard allowance.

Inclusive roaming details

Inclusive roaming covers calls back to the UK and within your destination. Calls to other countries—say, ringing a hotel in Italy from Ireland—use standard roaming rates even with an eligible plan. Data speeds cap at 2 Mbps across all roaming zones outside Europe.

What people are saying

If you’re going beyond our Inclusive Zone, you can still subscribe to the full O2 Travel Bolt On for £7 a day in selected destinations.

— O2 Official (UK Mobile Network)

The £7/day only runs on days you actually use your phone. If you send a few texts, you get charged for that day—but not for days your phone stays in your pocket.

— TurkSIM (Roaming Analysis)

O2 remains the only major UK network not reintroducing EU roaming charges. That gives Plus and Volt customers a concrete advantage over competitors who quietly added surcharges after Brexit.

— TurkSIM (Roaming Analysis)

Summary

O2’s roaming setup splits cleanly into three tiers: free on Volt/Plus with 27 destinations, free on Ultimate with 75, and £7/day for everyone else via Bolt On with the same 75-destination reach. Ireland and Europe Zone get your UK allowance up to 25 GB with no extra cost—the one genuine post-Brexit win O2 customers hold over Vodafone and Three subscribers. The catch is the 2 Mbps speed cap and the fact that Bolt On purchases at the airport tend to fail. For travellers heading to the USA, Turkey, or UAE, the £7 daily bolt-on pays for itself in the first few megabytes versus standard roaming rates. Volt and Plus customers already on an eligible tariff have no action needed—the zone’s already there.

Related reading: O2 roaming USA · O2 international roaming

Frequently asked questions