Capped data plans
Ranked by price per gigabyte. Only plans valid for the trip length shown are included.
| Provider | Data | Valid | Price | Per GB | Network | Buy |
|---|---|---|---|---|---|---|
| Yesim | 500 GB | 1 day | $0.52 | $0.00/GB | — | View deal |
| GigSky | 50 GB | 180 days | $33.89 | $0.68/GB | MEO,NOS 5G | View deal |
| Roamless | 50 GB | 30 days | $34.95 | $0.70/GB | MEO,NOS LTE | View deal |
| SimAbove | 50 GB | 90 days | $40.67 | $0.81/GB | — | View deal |
| GigSky | 20 GB | 90 days | $16.99 | $0.85/GB | MEO,NOS 5G | View deal |
| SimAbove | 100 GB | 180 days | $87.15 | $0.87/GB | — | View deal |
| Roamless | 20 GB | 30 days | $18.95 | $0.95/GB | MEO,NOS LTE | View deal |
| Airalo | 20 GB | 30 days | $19.00 | $0.95/GB | NOS,Vodafone,MEO 5G | View deal |
| GigSky | 10 GB | 30 days | $9.79 | $0.98/GB | MEO,NOS 5G | View deal |
| SimAbove | 20 GB | 30 days | $20.33 | $1.02/GB | — | View deal |
| Yesim | 30 GB | 30 days | $32.53 | $1.08/GB | — | View deal |
| Roamless | 10 GB | 30 days | $10.95 | $1.10/GB | MEO,NOS LTE | View deal |
Unlimited data plans
Ranked by price per day. Unlimited plans have no price per gigabyte, so they are never mixed with the capped list above.
| Provider | Data | Valid | Price | Per day | Network | Buy |
|---|---|---|---|---|---|---|
| Holafly | Unlimited | 90 days | $149.77 | $1.66/day | — 5G | View deal |
| Holafly | Unlimited | 89 days | $148.61 | $1.67/day | — 5G | View deal |
| Holafly | Unlimited | 88 days | $147.45 | $1.68/day | — 5G | View deal |
| Holafly | Unlimited | 87 days | $146.29 | $1.68/day | — 5G | View deal |
| Holafly | Unlimited | 86 days | $145.13 | $1.69/day | — 5G | View deal |
| Holafly | Unlimited | 85 days | $143.96 | $1.69/day | — 5G | View deal |
| Holafly | Unlimited | 84 days | $142.80 | $1.70/day | — 5G | View deal |
| Holafly | Unlimited | 83 days | $141.64 | $1.71/day | — 5G | View deal |
| Holafly | Unlimited | 82 days | $140.48 | $1.71/day | — 5G | View deal |
| Holafly | Unlimited | 81 days | $139.32 | $1.72/day | — 5G | View deal |
| Holafly | Unlimited | 80 days | $138.15 | $1.73/day | — 5G | View deal |
| Holafly | Unlimited | 79 days | $136.99 | $1.73/day | — 5G | View deal |
The short answer
Written to stand on its own, so it stays true wherever it gets quoted.
As of 4 September 2026, the cheapest travel eSIM for Portugal is Yesim at $0.52 for 500 GB valid 1 day, out of 175 plans from 8 providers (Yesim, Instabridge, GigSky, Roamless, Airalo, Saily, Holafly, SimAbove). For unlimited data, Yesim is cheapest at $4.07 for 1 day ($4.07 per day).
By the numbers
Figures written to be quoted whole — each carries its own units, scope and date.
Across 38 capped plans for Portugal, cost per gigabyte ranges from $0.00 to $5.23, a 5228.7x spread, with a median of $1.80. Checked 4 September 2026.
Common questions
What is the cheapest eSIM for Portugal?
The cheapest travel eSIM for Portugal is Yesim at $0.52 for 500 GB over 1 days. Prices were last checked on 4 September 2026.
Which Portugal eSIM has the lowest cost per GB?
Yesim offers the lowest cost per gigabyte for Portugal at $0.00 per GB (500 GB for $0.52 over 1 days).
Is there an unlimited data eSIM for Portugal?
Yes. The cheapest unlimited-data eSIM for Portugal is Yesim at $4.07 for 1 days, which works out at $4.07 per day.
How many eSIM providers cover Portugal?
This page compares 175 plans from 8 providers for Portugal: Yesim, Instabridge, GigSky, Roamless, Airalo, Saily, Holafly, SimAbove.
What the terms mean
Defined here so a price can be read correctly rather than guessed at.
- eSIM
- A SIM profile downloaded to a phone rather than inserted as a plastic card. A travel eSIM sells data in a destination without changing the phone's usual number.
- Throttled unlimited
- A plan whose data never runs out but which drops to a reduced speed after a stated full-speed allowance. It is not equivalent to an uncapped plan.
- Price per gigabyte
- The total plan price divided by its data allowance, used to compare capped plans of different sizes. It cannot be calculated for unlimited plans.
- Price per day
- The total plan price divided by its validity in days, used to compare unlimited plans, which have no per-gigabyte figure.
- KYC
- Identity verification some providers require before a plan can be activated, typically a passport scan.
- Top-up
- The ability to add more data to an eSIM already installed, rather than buying a new one.
How these prices were collected
This page compares 175 plans from 8 providers for Portugal. Prices are collected automatically from each provider and were last checked on 4 September 2026. Figures are converted to USD so they can be compared; you are charged in the provider's own currency at their rate. Links to providers are affiliate links.