O2 roaming in Portugal: what it costs, and when an eSIM is cheaper
Data in Portugal is included with all Pay Monthly plans and Pay As You Go SIMs. An eSIM for 7 days and 6 GB costs from $9.00 (Ubigi).
Rates checked on October 21, 2026 in the official price guide · Source: O2
The best eSIMs in Portugal for a week
For 7 days and 6 GB
- 1Best unlimited
GigSky
Unlimited · 7 days
$24.49$3.50 per day- 3.5 GB a day at full speed, then 500 kbps
- Networks: MEO and NOS
- Hotspot allowed
- 2Cheapest
Ubigi
10 GB · 7 days
$9.00$0.90 per GB- Lowest total price for 7 days
- Network: MEO
- Hotspot allowed
- 3Best price per GB
GoMoWorld
15 GB · 30 days
$12.99$0.87 per GB- Lowest price per GB for this trip
- Hotspot allowed
Three steps, three questions: the best unlimited plan, the cheapest and the best price per GB, from three different providers. How we pick the podium · Affiliate links
O2 or an eSIM in Portugal: our verdict
Depending on your plan and trip length, at the prices read on October 22, 2026.
With your O2 plan
Keep O2
Data in Portugal is included in O2’s reference plan at no extra cost, within your allowance abroad.
With an eSIM, 7 days and 6 GB
$9.00
Today’s lowest price, from Ubigi. Useful if you go over your plan’s allowance.
See the planAffiliate links
Data in Portugal with O2: our analysis
What O2’s rate sheet and eSIM prices show, as checked on October 22, 2026.
If you go over your allowance
- 3 daysGoMoWorld$4.99
- 1 weekUbigi$9.00
- 2 weeksGoMoWorld$12.99
- 1 monthJetpac$23.99
eSIMs in Portugal at a glance
- In Portugal, we compare plans from 8 eSIM providers: Airalo, GigSky, GoMoWorld, Jetpac, Nomad, Orange Travel, Ubigi, and Yesim.
- The cheapest unlimited plan for a week is from GigSky: $24.49 (Unlimited · 7 days).
- A pocket WiFi rents from €58.65 a week (Hippocketwifi); see pocket WiFi rental in Europe.
Plan by plan
What applies in Portugal depending on your O2 plan.
What O2’s official rate sheet sets out in Portugal, offer by offer. “Included” means at no extra cost, within your allowance abroad: your O2 account shows the one on your line.
| Plan or offer | Data in Portugal |
|---|---|
| Europe Zone roaming (included) | Included |
| all Pay Monthly plans | Included |
| Pay As You Go SIMs | Included |
What your trip costs
With the O2 roaming rate, against today’s cheapest eSIM, for everyday use.
| Trip | With O2 | Cheapest eSIM | The offer |
|---|---|---|---|
| 3 days · 3 GB | Included with all Pay Monthly plans | $4.99 GoMoWorld | See the plan |
| 7 days · 6 GB | Included with all Pay Monthly plans | $9.00 Ubigi | See the plan |
| 14 days · 12 GB | Included with all Pay Monthly plans | $12.99 GoMoWorld | See the plan |
| 30 days · 24 GB | Included with all Pay Monthly plans | $23.99 Jetpac | See the plan |
Affiliate links
Portugal with other UK carriers
The same trip with the other UK carriers we track, from their official rate sheets.
All 5 UK carriers we track include Portugal in at least one plan: EE, giffgaff, O2, Three, and Vodafone.
| Carrier | Included with | A week (6 GB) |
|---|---|---|
 giffgaff | all plans | Included |
 Three | Value, Complete, and plans taken before 1 October 2021 | £12.00 Go Roam in Europe pass, 7-day |
 Vodafone | Euro Roam, Global Roam, and any plan taken before 11 August 2021 | £16.00 8-day European Roaming pass |
 EE | Essentials Plus, All Rounder, Full Works, Full Works Plus and any plan launched before 7 July 2021 | £16.50 Weekly EU Roaming Pass |
If you take an eSIM: the settings with O2
Four settings, before you leave or on the plane.
- 1
Install the eSIM at home
Buy it and scan its QR code before you leave: with most providers, the plan only starts when you first connect at your destination.
- 2
Keep O2 for calls
In your settings, keep your O2 line for calls and texts, and pick the eSIM for mobile data.
- 3
Turn off O2 roaming
On iPhone: Settings › Cellular › your O2 line › Data Roaming. On Android: Settings › Mobile networks › Roaming.
- 4
Keep eSIM roaming on
A travel eSIM uses the local networks: its data roaming must stay on.
O2 roaming in Portugal: your questions
Answered from the O2 price guide and today’s prices.
Is data in Portugal included in my O2 plan?
Yes, with all Pay Monthly plans and Pay As You Go SIMs.
O2 or an eSIM in Portugal: which is cheaper?
If you go over your allowance, an eSIM can take over: for 3 days, $4.99 (GoMoWorld); for a week, $9.00 (Ubigi); for two weeks, $12.99 (GoMoWorld); for a month, $23.99 (Jetpac).
Which UK carriers include Portugal?
All 5 UK carriers we track include Portugal in at least one plan: EE, giffgaff, O2, Three, and Vodafone.
Which network does an eSIM use in Portugal?
The cheapest one-week eSIM (Ubigi) uses MEO. Depending on the plan, the 8 providers we compare in Portugal list NOS, Vodafone, and MEO.
How do I avoid roaming charges in Portugal?
Use a travel eSIM for data and turn off data roaming on your O2 line. You keep your number for calls and texts.
Can I keep my O2 number with an eSIM?
Yes, on an eSIM-compatible phone: your O2 line stays on for calls and texts while the eSIM carries the data.
France
Greece
Iceland
Italy
Spain
Turkey