Portugal SIM Card Guide — Best Options for Tourists in 2026

Portugal has three main mobile networks — NOS, MEO, and Vodafone Portugal — plus a range of MVNOs and international eSIM providers. For most tourists, a prepaid tourist SIM from one of the three operators covers everything needed. This guide covers what each costs, where to buy, and which suits different trip types.

The Three Main Operators

NOS

NOS is Portugal’s largest private telecommunications company and the most commonly recommended tourist SIM.

Tourist SIM options (2026 approximate prices):

• €15 for 20GB data, valid 30 days
• €25 for 40GB data, valid 30 days

NOS has extensive 4G coverage across the country and 5G in Lisbon, Porto, Faro, and other major cities. Coverage in rural areas is good along main roads but can thin in remote mountain or agricultural areas. NOS stores are common in shopping centres and the Lisbon and Porto airports.

MEO

MEO (Altice Portugal) has the broadest network coverage in Portugal, particularly in rural areas and the island regions. If your trip includes significant time in the Alentejo interior, the Douro Valley back roads, or the Azores, MEO is typically the most reliable choice.

Tourist SIM options (2026 approximate prices):

• €19.99 for 25GB data, valid 30 days
• €29.99 for 50GB data, valid 30 days

MEO is slightly more expensive than NOS but justified for rural itineraries. MEO stores are in most large towns and in Lisbon and Porto airports.

Vodafone Portugal

Vodafone Portugal operates independently from other Vodafone-branded networks and uses its own infrastructure.

Tourist SIM options (2026 approximate prices):

• €20 for 30GB data, valid 30 days
• €35 for 60GB data, valid 30 days

Vodafone coverage in cities is excellent. Rural coverage is generally good along N-road networks but less comprehensive than MEO in genuinely remote areas.

eSIM Options

eSIM is available across Portugal and works with all modern unlocked smartphones. The main advantage is being able to keep your existing number active (for calls and texts) while adding a Portuguese data plan.

Airalo: the most widely used international eSIM marketplace. Portugal plans start at approximately €8 for 5GB/30 days, scaling up to €20 for 20GB. Airalo connects via Vodafone Portugal infrastructure for most Portugal plans. Setup is completed entirely within the Airalo app before departure — no SIM card needed.

Holafly: similar platform to Airalo, with unlimited data plans for Portugal at around €25 for 15 days or €35 for 30 days. Uses MEO or NOS infrastructure depending on the plan.

Operators’ own eSIM: NOS, MEO, and Vodafone all offer eSIM activation for Portuguese plans, but this typically requires an in-person visit to an operator store, which defeats much of the convenience advantage.

Where to Buy a SIM Card

Lisbon Airport (LIS)

The arrivals hall of Terminal 1 at Lisbon Humberto Delgado Airport has:

• NOS dedicated desk (staffed during peak arrival hours)
• MEO vending machine and staffed desk
• Vodafone kiosk

All are in the arrivals area after customs. Bring your passport — registration is required by law, and all operators enforce this.

Porto Airport (OPO)

Porto Francisco Sá Carneiro Airport has operator desks in the arrivals area. NOS and MEO are both represented. Vodafone coverage at Porto airport is more limited — a Vodafone store is in the nearby NorteShopping centre (accessible by metro, 15 minutes from the airport).

City Operator Stores

All three operators have high street stores in Lisbon (Chiado, Baixa, Colombo shopping centre), Porto (city centre, NorteShopping), and major Algarve towns (Faro, Lagos, Albufeira, Tavira). Stores typically have English-speaking staff and can set up the SIM card in the shop.

Convenience Stores and Newsagents (tabacarias)

Basic prepaid SIM starter packs (without data bundles) are sold at many convenience stores and newsagents. These require self-activation online or by phone, which can be more complicated without Portuguese language skills. Buying from an operator store is easier.

Online Before Travel

EU-based operators allow Portuguese SIM cards to be ordered and shipped before travel. This is only practical for travellers with a EU delivery address or several weeks’ lead time.

Using Your Existing SIM in Portugal

EU Citizens

EU roaming regulations (Open Internet Regulation) guarantee that EU citizens can use their home country’s mobile plan in Portugal at their domestic rates, subject to a “fair use” cap. For most European users, the data cap for Portugal roaming is equivalent to their domestic plan. Check with your provider — some operators apply a monthly roaming cap.

UK Citizens (Post-Brexit)

Roaming charges between the UK and Portugal are no longer regulated. UK operators vary significantly:

• Three UK: includes Portugal in its Go Roam scheme with data included
• EE: charges apply for roaming; check your specific plan
• Vodafone UK: roaming charges apply for standard plans; Vodafone Extra includes roaming
• O2: international bolt-ons available; charges vary by plan

Check your UK operator’s Portugal roaming rates before departure — costs can be significant for heavy data users.

US and Other Non-EU Citizens

US operators (T-Mobile, AT&T, Verizon) have varying international plans. T-Mobile’s Magenta plan includes unlimited data (at 128kbps, which is slow) in Portugal. Full-speed international data from US operators is expensive — a local SIM or eSIM is typically better value for any stay longer than a day or two.

Practical Tips

• Activation: most operator SIMs activate automatically within 30 minutes of insertion. If not, call the operator’s customer service line (usually free from the SIM itself).
• Top-up: NOS, MEO, and Vodafone all offer online top-up via their apps or websites, accepting Visa and Mastercard.
• Coverage maps: check each operator’s coverage map before committing — MEO’s map (meo.pt/cobertura) and NOS’s (nos.pt/cobertura) show 4G and 5G zones by postcode.
• Hotspot/tethering: all tourist SIM plans from the main operators include hotspot use — useful for connecting laptops or tablets to the Portuguese data plan.