The short verdict
Flysimio on NOS and Vodafone is a strong-value Portugal eSIM in 2026, competitive per gigabyte at the plan sizes most visitors buy — the dated price index below shows exactly where we come out ahead of Nomad, Airalo and Holafly and where we do not. NOS has the most extensive coverage in mainland Portugal, from Lisbon and Porto down to the Algarve coast. MEO (Altice Portugal) is a strong second, and both Madeira and the Azores are included in standard Portugal plans as autonomous regions. Summer (July–September) is peak season, so buy before you fly.
Flysimio Portugal eSIM
$1.43 from · instant QR · 7-day refund
Portugal eSIM price index — October 2026
Across 4 providers and 16 plans compared in October 2026, the cheapest Portugal eSIM data on a standard 3–50 GB plan works out at $1.02/GB (Flysimio, priced live). On the same measure the cheapest rival plan is Nomad at $0.90/GB — cheaper than our best equivalent plan, which costs 14% more per gigabyte.
| Provider | Plan | Price | Price per GB | Network | Best for | Price checked |
|---|---|---|---|---|---|---|
| Nomad | 50 GB / 30 days | $45.00 | $0.90/GB | MEO / Vodafone / NOS | Easy app | Oct 8, 2026 |
| Nomad | 20 GB / 30 days | $20.00 | $1.00/GB | MEO / Vodafone / NOS | Easy app | Oct 8, 2026 |
| FlysimioBuy$20.50 | 20 GB / 30 days | $20.50 | $1.02/GB | NOS / Vodafone | Live | |
| FlysimioBuy$53.38 | 50 GB / 30 days | $53.38 | $1.07/GB | NOS / Vodafone | Live | |
| FlysimioBuy$10.70 | 10 GB / 30 days | $10.70 | $1.07/GB | NOS / Vodafone | Live | |
| FlysimioBuy$5.95 | 5 GB / 30 days | $5.95 | $1.19/GB | NOS / Vodafone | Live | |
| FlysimioBuy$3.75 | 3 GB / 15 days | $3.75 | $1.25/GB | NOS / Vodafone | Live | |
| FlysimioBuy$1.43 | 1 GB / 7 days | $1.43 | $1.43/GB | NOS / Vodafone | Live | |
| Nomad | 10 GB / 30 days | $16.00 | $1.60/GB | MEO / Vodafone / NOS | Easy app | Oct 8, 2026 |
| Nomad | 5 GB / 30 days | $10.00 | $2.00/GB | MEO / Vodafone / NOS | Easy app | Oct 8, 2026 |
| Nomad | 1 GB / 7 days | $4.50 | $4.50/GB | MEO / Vodafone / NOS | Easy app | Oct 8, 2026 |
| Airalo | Unlimited (3 GB/day) / 7 days | $27.00 | — | NOS | Coverage & app | Oct 8, 2026 |
| Holafly | Unlimited / 7 days | $27.50 | — | MEO / NOS / Vodafone Portugal | Unlimited data | Oct 8, 2026 |
| Airalo | Unlimited (3 GB/day) / 30 days | $69.00 | — | NOS | Coverage & app | Oct 8, 2026 |
| Holafly | Unlimited / 30 days | $73.90 | — | MEO / NOS / Vodafone Portugal | Unlimited data | Oct 8, 2026 |
| FlysimioBuy$75.90 | Unlimited (2 GB/day) / 30 days | $75.90 | — | NOS / Vodafone | Live |
- Airalo · Unlimited (3 GB/day) / 7 days: Airalo bills this as "Unlimited": 3 GB per day at full speed, then throttled to about 1 Mbps. Airalo's Portugal store lists unlimited packages only.
- Holafly · Unlimited / 7 days: Unlimited with no daily high-speed cap; Holafly applies a fair-use policy for at most one day at a time.
- Airalo · Unlimited (3 GB/day) / 30 days: Airalo bills this as "Unlimited": 3 GB per day at full speed, then throttled to about 1 Mbps.
- Holafly · Unlimited / 30 days: Unlimited with no daily high-speed cap; Holafly applies a fair-use policy for at most one day at a time.
- Flysimio · Unlimited (2 GB/day) / 30 days: 2 GB per day at full speed, then 1 Mbps. Sold as 1–30-day passes; 30 days is priced here for comparison.
How this table is priced. Flysimio prices are read live from our carrier catalog every time this page loads, so the figure here is the figure at checkout. Competitor prices are the US-dollar price shown on each provider's own site, read on the date in the last column and linked to the page we read it from; promotional prices are marked alongside the list price. Price per GB is the plan price divided by its included data — unlimited passes have no per-GB figure and are ranked by total price instead. Full method: how we test, the eSIM Price Index and what an eSIM costs.
- Nomad — checked Oct 8, 2026 — www.nomadesim.com/portugal-eSIM
- Airalo — checked Oct 8, 2026 — www.airalo.com/portugal-esim
- Holafly — checked Oct 8, 2026 — esim.holafly.com/esim-portugal/
NOS vs MEO vs Vodafone Portugal
| Carrier | Coverage | Best for |
|---|---|---|
| NOS | Widest mainland coverage, strong Alentejo and interior | Any Portugal trip including rural areas |
| MEO (Altice Portugal) | Strong nationwide; good in Algarve and north | Lisbon, Porto, and Algarve beach stays |
| Vodafone Portugal | Good urban; weaker rural | Major city stays |
Coverage by destination
| Destination | Coverage | Notes |
|---|---|---|
| Lisbon | Excellent 4G/5G | All carriers; full city including Belém and Sintra |
| Porto | Excellent 4G/5G | Full coverage; Douro Valley covered along main roads |
| Algarve (Faro, Lagos, Albufeira) | Excellent 4G | Full coastal strip coverage |
| Sintra | Excellent 4G | Palace grounds and town covered |
| Douro Valley (wine country) | Good 4G | Main road corridors covered; remote terraces variable |
| Alentejo (Évora, Monsaraz) | Good 4G | NOS reaches most Alentejo villages |
| Madeira (Funchal) | Good 4G | City and coastal roads; Pico do Arieiro can drop to 3G |
| Azores (São Miguel) | Good 4G | Ponta Delgada and main roads covered; remote volcanic trails limited |
Portugal eSIM vs a Portuguese SIM card
NOS, Vodafone and MEO, Portugal’s three carriers, sell prepaid SIMs at Lisbon and Porto airports and in their shops. A travel eSIM is bought online, installed before you fly and connects to NOS and Vodafone on landing, leaving your home SIM in the phone.
| Flysimio eSIM | Portuguese prepaid SIM | |
|---|---|---|
| Where you buy it | Online, before you fly | Carrier shop, airport or convenience store |
| Network | NOS and Vodafone | The carrier you buy from |
| Portuguese phone number | No (data-only) | Yes |
| Home number | Stays active on your regular SIM | Removed while the Portuguese SIM is in |
Using your US phone in Portugal
Some US plans include basic roaming in Portugal, often at reduced speed, so check yours. For full-speed data, add a Portugal eSIM and keep your US line on for calls and texts with data roaming off. Phone settings (data roaming, keeping your number) are covered step by step in how to use an eSIM abroad.
Combining Portugal with Spain or France? Every tier of the Europe eSIM includes Portugal, and the 33-, 34- and 41-country tiers add France.
Installing your Portugal eSIM
- Purchase before you fly — install on home Wi-Fi.
- Open the Flysimio email for the QR code.
- iPhone: Settings → Cellular → Add eSIM → Use QR Code.
- Android: Settings → Network & Internet → SIMs → Add SIM.
- Scan the code. Installation under 30 seconds.
- Label the eSIM "Portugal" and set as data line.
- Disable Data Roaming on your home carrier SIM.
- Your phone connects to NOS on landing at Lisbon (LIS), Porto (OPO), Faro (FAO), Funchal (FNC), or Ponta Delgada (PDL).
Frequently asked questions
What are the main cell phone carriers in Portugal?
NOS, Vodafone and MEO. Flysimio’s Portugal plans run on NOS and Vodafone, with 4G and 5G across Lisbon, Porto and the Algarve.
Can I use my US cell phone in Portugal?
Yes, if it is unlocked. Install a Portugal eSIM before you fly for data, and keep your US line on for calls and texts with data roaming off. Check your US plan first: some include basic roaming in Portugal, and carrier day passes cost around $10–$12 a day.
What is the best eSIM for Portugal?
Flysimio on NOS and Vodafone is the value pick for a fixed-data Portugal eSIM in 2026, and was cheaper than Nomad at 5 GB when we checked in October 2026 — though Nomad undercuts us per gigabyte on larger plans. Airalo and Holafly both sell unlimited-only passes for Portugal, so there is no equivalent fixed Airalo plan to compare against. NOS has the widest mainland coverage including the Alentejo interior.
Does a Portugal eSIM cover Madeira?
Yes. Madeira is an autonomous region of Portugal. A standard Portugal eSIM covers Madeira with no additional cost or setup. Coverage in Funchal and along coastal roads is good; higher altitude levada walks may have intermittent signal.
Does a Portugal eSIM cover the Azores?
Yes. The Azores are an autonomous region of Portugal. A Portugal eSIM covers all nine Azorean islands. Coverage is good in Ponta Delgada (São Miguel) and main towns. Remote volcanic calderas and walking trails may have limited signal.
Is there eSIM coverage in the Douro Valley?
Yes along the main N222 road and Douro river corridor. Remote vineyard terraces and side valleys can have patchy 4G. For wine country driving, download offline maps as a backup.
Is a Portugal eSIM needed if I already have an EU plan?
If your current eSIM covers the EU (many Europe regional plans do), it will work in Portugal — Portugal is an EU member state. Check your current plan's country list before buying a separate Portugal eSIM.
When is the best time to buy a Portugal eSIM?
Before you fly — eSIM installation requires Wi-Fi and is much easier at home than in a Portuguese airport. Portugal is busiest in July and August; buy your eSIM a few days before departure to avoid any last-minute issues.
Flysimio Portugal eSIM
$1.43 from · instant QR · 7-day refund
Maya Okafor
Senior Travel Connectivity Editor
Maya has tested eSIMs across 40+ countries over five years of full-time travel — from Tokyo subways to Patagonian backroads. She runs Flysimio’s hands-on network and speed testing.