Is there signal up at Pena Palace and the Moorish Castle?

Generally yes, though the hilltop's dense forest and thick stone can weaken data in spots. You'll usually have enough for maps and tickets; download key directions beforehand for the shadier woodland trails between sights.

Can I use the same eSIM for both Sintra and Lisbon?

Yes. It's a single national Portugal plan, so one eSIM covers Lisbon, the train out to Sintra, the palaces and day trips to Cabo da Roca or Cascais without any switching or extra setup.

Sintra eSIM.

Name: Sintra travel eSIM
Brand: My Holiday SIM

Climb to Sintra's candy-coloured Pena Palace and wander Regaleira's mossy initiation tunnels.

from $2.15/day · unlimited dataAll of Portugal →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$4.60$0.46/day

Cheapest plan covering your trip: 3GB, valid 15 days.

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$4.60

Good to know in Sintra

Sintra sits in a wooded microclimate where signal can weaken among dense trees and thick palace walls. Download offline maps of the Serra and your palace tickets before leaving the station, as hilltop crowds also strain the network midday.

Two simple ways to buy

Sintra eSIM plans: unlimited, or by the GB.

Every Sintra eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Sintra — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Sintra?

A rough, honest guide to sizing your Sintra eSIM so you're not guessing. Most travellers in Sintra are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Sintra eSIM: your local data guide.

Sintra's palaces are scattered across a forested hilltop, and the walk between Pena Palace, the Moorish Castle and Quinta da Regaleira is far easier with a live map and 434 bus times to hand. A Sintra eSIM lets you book timed palace entries, call a Bolt back to the station and translate ticket queues, even as mist rolls through the Serra.

One eSIM for Sintra and all of Portugal. It's the national Portugal eSIM — from $2.15/day with unlimited data, working the same in Sintra as it does the moment you leave it.

Landing at Lisbon Airport (Humberto Delgado, LIS)?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Sintra eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$0.81

$2.43

—

5 days1GB

$0.49

$2.43

−40%

7 days1GB

$0.35

$2.43

−57%

10 days3GBPopular

$0.46

$4.60

−43%

15 days3GB

$0.31

$4.60

−62%

30 days5GB

$0.20

$6.14

−75%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Sintra

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Sintra eSIM from $2.15/day — the whole bill, agreed before you fly.

On the ground

Where you'll lean on data in Sintra.

Pena Palace & Park

Buy timed-entry tickets and trace the sprawling park's paths on your phone before the afternoon crowds and mist arrive.

Quinta da Regaleira

Follow maps down the Initiation Well and through the grotto tunnels, then share the fairy-tale photos instantly.

Historic Centre (Vila)

Book palace tickets, compare tuk-tuk fares and translate menus around the National Palace's twin conical chimneys.

Cabo da Roca & Monserrate

Check the 403 bus to Europe's westernmost cliff and pull up Monserrate's garden opening hours en route.

The practical bit

Getting around Sintra on your eSIM.

Apps you'll want online in Sintra

CP - Comboios de Portugal— App for the Sintra train from Lisbon's Rossio; buy tickets and check times over data.
Scotturb— Runs the 434 and 435 tourist bus loops to Sintra's palaces; check times over data.
Bolt— Ride-hailing up to the hilltop palaces when the 434 bus queues are long; needs data.
Google Maps— Essential for the steep, wooded palace trails; download offline maps for patchy hillside signal.

How long to stay in Sintra

Sintra is usually a single packed day-trip from Lisbon, though staying one night lets you beat the crowds to Pena Palace and Quinta da Regaleira at opening.

How much data for Sintra

A day-tripper rarely needs more than 1-2 GB for timed-entry tickets, the 434 bus tracker and palace photos; pick a balanced 3-5 GB only if Sintra is part of a longer Lisbon stay.

Coverage in Sintra

Coverage is solid around Sintra town, the train station and Pena Palace, but the wooded hillsides, the climb to the Moorish Castle and the road to Cabo da Roca can thin to weak 4G or brief dead spots.

Where you're headed

Discover Sintra.

Sintra, Portugal — skyline and landmarks · stay connected with a Sintra eSIM from My Holiday SIM

Sintra, Portugal — streets and everyday scenes · stay connected with a Sintra eSIM from My Holiday SIM

Sintra, Portugal — sights worth exploring · stay connected with a Sintra eSIM from My Holiday SIM

Sintra, Portugal — a travel moment · stay connected with a Sintra eSIM from My Holiday SIM

How to activate your Sintra eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Sintra

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Sintra?

What is a Sintra eSIM?

A Sintra eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Sintra data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Peace of mind

Your Sintra eSIM: data-only, zero bill shock.

Your Sintra eSIM handles the internet while you travel. Your home number stays exactly where it is — no surprise roaming charges in Sintra, no swapping your real SIM out.

Keep your number & WhatsApp

The eSIM is data-only and runs alongside your home SIM. Your number, iMessage and WhatsApp keep working exactly as they do at home.

No roaming bills, ever

Turn data roaming OFF on your home SIM and ON for the eSIM. You pay once, up front — no overage, no metered surprises, no bill waiting when you land home.

One thing worth knowing

Because it's data-only, the eSIM can't receive bank verification (OTP) text codes — those still go to your home number. Keep it reachable on Wi-Fi calling, or use app-based codes.

Traveller relaxed and connected on her phone, no roaming bill to worry about

Why travellers choose My Holiday SIM for Sintra.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in Portugal.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins Portugal's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

MEO
Vodafone Portugal
NOS
Digi

Popular places covered

LisbonPortoSintraCascaisFaroLagosAlbufeiraCoimbra

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Sintra eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Sintra eSIM questions, answered.

Yes. Most visitors fly into Lisbon (LIS) and take the 40-minute train from Rossio, so your eSIM is live long before Sintra. It connects automatically on landing, covering your journey out and the palaces themselves.

Your Sintra eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in Portugal?