eSIM for Laos

Viasimo's Laos eSIM starts at $2.00 for 500 MB over 1 day, running on Lao Telecom with 5G where available. Plans last 1 to 180 days, arrive by email in minutes and install from your phone's settings, with no app.

Works everywhere in Laos

Attapu
Bokeo
Bolikhamsai
Champasak Province
Houaphan
Khammouane Province
Loungnamtha

Select your planIn stock

Duration

Quantity

Unlimited data · 3 Days$16.00

Unlimited data · 3 Days ×1

$16.00

Going to more than one country? See regional plans

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Dial *#06# on your phone. If you see an EID number, your phone takes an eSIM. Most phones sold since 2019 do.

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Network

Which networks does the Laos eSIM use?

Host networks: Lao Telecom

Your eSIM picks one automatically; you do not choose or switch between them.

Data: 500 MB – 20 GB or unlimited
Validity: 1–180 days
Speed: 4G LTE / 5G
Hotspot / tethering: Supported on most devices
Activation: Starts when you first connect in your destination
Speed management: Roughly 2-3 GB per day at full speed, sometimes less depending on the local carrier, then reduced
Top-ups: Add more data from your account, before the plan expires
Text messages (SMS): Data only: use an app for verification codes
Connects via: Singapore
Unused validity: 180 days before it must be installed

Setting up Buy, scan the QR code we email you, and switch on the travel line when you land. How it works

Choosing a plan

How much data do you need?

The allowances below are our sizing recommendations, not measurements. The plan beside each one is the cheapest option on this page that covers it.

Recommended data allowances matched to the plans sold for this destination
You are	Plan for	Cheapest plan that covers it
LightMaps, messaging and the occasional lookup	About 1 GB a week	$2.791 GB, 7 days
TypicalMaps, social, photos and some browsing	About 3 to 7 GB a week	$10.995 GB, 30 days
HeavyVideo streaming, video calls and uploads	10 GB a week or more	$19.9910 GB, 30 days
Working or sharingTethering a laptop, calls and cloud sync	20 GB a week or more	$33.0020 GB, 30 days

Work it out from your own habits

What a week abroad costs

eSIM, local SIM or roaming?

Charged per day

Your carrier roaming

Queue and plastic

A SIM at the airport

$2.00

Viasimo, one bundle

Only the Viasimo figure is a price: it comes from today’s live catalog. The other two rows are directional, not quoted rates.

About this eSIM

Travel in Laos is slow by design: river boats, winding mountain roads, a railway that has recently made the north dramatically easier to reach. Your data connection follows the same logic. It is good in Vientiane, Luang Prabang and the provincial capitals, workable along the main road and rail corridor, and genuinely sparse once you get into the limestone country of the north or the river islands of the far south. An eSIM installed before you arrive means you land connected and can spend your first hour arranging onward transport instead of hunting for a shop.

Getting online when you land

Add the profile at home over wifi, name it something obvious, and leave it switched off until arrival. Wattay in Vientiane and the airport at Luang Prabang are both small and quick, and land borders with Thailand are busier; either way, having connectivity already sorted while you deal with arrival formalities is a real convenience.

Turn the eSIM on once you are through, set it as the data line, and leave your home SIM on voice so your number keeps working. If it does not attach after a few minutes, cycle airplane mode. Do not judge the plan by what happens at a remote border post, since those sit in weak coverage by their nature; wait until you reach a town before deciding something is wrong.

The networks you'll be on

Data here runs over Lao Telecom, which operates 4G LTE and 5G where it has been rolled out. In Vientiane and Luang Prabang LTE is perfectly comfortable for maps, messaging, calls over the internet and uploading photos. Whether or not you find 5G will not affect anything you do.

The honest caveat is that Lao Telecom is one of several operators in the country, so in remote areas the difference between having a bar and having none can come down to which network a particular mast belongs to. In the towns you will not notice. Deep in a northern valley you might. Where you know you are heading somewhere isolated, download what you need first rather than counting on a connection appearing.

Where coverage holds, and where it thins

Vientiane is well covered, as are Luang Prabang, Pakse, Savannakhet, Thakhek and Vang Vieng. The main highway running the length of the country holds up reasonably, and the new railway corridor has improved things along its route in the north.

The gaps are real and they are where travellers spend a lot of their time. The two day slow boat down the Mekong from the Thai border spends long stretches with nothing at all, and the overnight stop at Pakbeng is limited. Nong Khiaw and Muang Ngoi have service in the village and lose it up the valleys and on the viewpoint climbs. The Thakhek loop dips in and out, and Konglor Cave is a hole in the ground surrounded by karst, which is exactly as bad for signal as it sounds. The Bolaven Plateau waterfalls, the trekking routes around Luang Namtha and much of Si Phan Don in the far south range from patchy to absent.

Rainy season, roughly the middle of the year, adds another layer: heavy storms interrupt service and wash out roads, so a signal that worked yesterday may not today.

What you'll actually use data for here

Transport logistics dominate. Bus and minivan departures change, boats fill up, train seats on the new line sell out well ahead, and almost all of this is now negotiated through messaging apps with guesthouses and ticket agents. Being reachable is how you keep a loose itinerary moving.

Beyond that: navigation on motorbike loops where the turnings are unsigned, translating Lao script with a camera, booking guesthouses a day or two ahead in high season, and uploading photos on the evenings when you have a decent connection. Video calls home work fine from the cities and less well from a bamboo hut over the river.

Before you fly

Download offline maps for the whole country, including the northern provinces and the southern islands. This is the highest value thing you can do before arriving.

Take a power bank, and more capacity than you think you need. Guesthouses in remote villages may only have power for part of the evening, boats have no sockets, and a full day of navigation on a motorbike will empty a phone.

Screenshot bookings, guesthouse locations and any contact numbers. Carry enough cash for rural stretches, since machines are scarce outside the towns and a card is often useless. Install and label the eSIM before departure, confirm your handset is unlocked, and check that your data is actually routing through it rather than quietly roaming on your home line.

Unlimited runs at full speed up to a fair-use limit, then continues slower.

Before you buy

Important to know

This is a data-only eSIM. It carries no calls or SMS on its own number.
Your existing number stays on your primary SIM, so calls and verification texts keep working.
Your phone must support eSIM, and some carrier-locked phones cannot install one.
Signal varies with location, terrain, congestion and your handset. Dense urban areas are consistently better served than remote ones.
5G only works where the host network has deployed it and your phone supports it. Everywhere else it falls back to 4G LTE.
The eSIM selects a host network automatically. You cannot pick or switch between them.
Unlimited plans run at full speed up to a fair-use limit, then continue at a reduced speed. Read the fair usage policy

Looking for more information?

Frequently asked questions

Does an eSIM work in Laos?

Yes. Your Laos eSIM connects automatically the moment you arrive, with no roaming fees and nothing to set up at the airport. The host networks it can use are Lao Telecom. Coverage runs on 4G LTE and 5G where the network has rolled it out, and falls back to 4G elsewhere.

Do I get 5G in Laos?

Yes, where it has been deployed. 5G runs on Lao Telecom in Laos, and your eSIM uses it automatically on a 5G-capable phone, dropping back to 4G LTE outside covered areas. No country is covered everywhere, so 5G availability varies by location.

Can I book the Laos–China Railway online?

Yes, through the LCR mobile app. In the first year after the railway opened, tickets could only be bought up to three days ahead and not online, but the app now handles online sales. Trains between Vientiane, Vang Vieng and Luang Prabang often sell out at busy times, so book once your dates are fixed and have your passport details ready.

How long is the train from Vientiane to Luang Prabang?

About two hours on a fast train, based on the published timetable, and longer on an ordinary train. The line runs 406 km from Vientiane to Boten on the Chinese border, stopping at Vang Vieng, Luang Prabang and Muang Xay. Mobile coverage along the line varies as it goes through tunnels and mountain sections.

What is the emergency number in Laos?

Dial 1191 for police, 1195 for ambulance and 1190 for fire, according to the UK government. Vientiane's Tourist Police are on 021 251 128. Response can be limited outside the main towns, so ask your accommodation to help if something goes wrong.

Is it safe to follow map shortcuts in rural Laos?

Not always. The UK government warns that unexploded ordnance still kills people in Laos each year, especially after flash floods and landslides in the monsoon. Stay on main roads and well-used paths, don't let a navigation app route you along farm tracks, and never touch metal objects.

How much data do I need for 7 days in Laos?

For 7 days in Laos, Viasimo sells 1 GB for $2.79 and unlimited data for $35.99. Our sizing recommendation, not a measurement: maps, messaging and the occasional lookup, about 1 GB a week; maps, social, photos and some browsing, about 3 to 7 GB a week. The data calculator on this site works it out from how you actually use your phone.

Installing, keeping your number, topping up and hotspot work the same everywhere: see how it works →

Know before you go

Laos: what to know before you land

In Laos your eSIM uses Lao Telecom. The phone matters most for booking the Laos–China Railway: tickets are sold through the LCR app, and the fast train takes about two hours from Vientiane to Luang Prabang. Save the emergency numbers 1191 (police) and 1195 (ambulance) before you head out on a motorbike loop or a Mekong boat.

Emergency: 1191 police, 1195 ambulance, 1190 fire
Plugs: ABCEF 230V
Currency: Lao kip (LAK)

Main airports

VTE Wattay International Airport, Vientiane
LPQ Luang Prabang International Airport
PKZ Pakse International Airport

Apps worth having LCR app (Laos–China Railway)WhatsAppLINEGoogle Maps

Booking the Laos–China Railway from Vientiane to Luang Prabang

The Boten–Vientiane railway runs 406 km from the Chinese border at Boten, past Muang Xay, Luang Prabang and Vang Vieng, to its southern terminus in Vientiane. It has replaced the long mountain bus ride for most visitors. Based on the published timetable, the fast train takes roughly two hours between Vientiane and Luang Prabang and about an hour between Vang Vieng and Luang Prabang. Ordinary trains are slower.

Tickets used to be the difficult part. In its first year the railway only sold tickets up to three days in advance and had no online sales, so travellers queued at stations or paid agents. Now you can buy online in the LCR mobile app, but popular departures can still sell out.

Use your data to book and check your ticket. Download and set up the LCR app on Wi-Fi before you arrive, have your passport details to hand, and check seat availability as soon as your dates are firm. Vientiane's railway station is well outside the city centre, so book your transfer to it in advance.

UXO, motorbike loops and the 1949 driving permit

The UK government warns that unexploded ordnance from past conflicts still kills people in Laos every year, and that the risk rises after flash floods and landslides in the monsoon. Stick to main routes and well-used paths in rural areas, and never touch metal objects. If your map app suggests a shortcut along a farm track on the Thakhek loop or around the Bolaven Plateau, stay on the road.

If you're renting a motorbike, UK travellers need the 1949-version International Driving Permit alongside their licence, and it can only be issued before you leave the UK. Police stop vehicles at any time, especially in the evening, to check ID. Never leave your passport as a rental deposit: some rental shops have kept passports and demanded large fees to return them. Use your phone to photograph the bike's condition before you set off, and avoid riding after dark, when many vehicles have no lights.

Laos has a zero-tolerance drug policy. Even small amounts of cannabis can mean a long prison sentence, and transit bags are scanned at airports.

Mekong slow-boat safety and Laos emergency numbers

Mekong boat trips, such as the two-day slow boat from Huay Xai via Pakbeng to Luang Prabang or the boats around Si Phan Don in the south, come with risks the UK government highlights: changing water levels, strong currents and hidden obstacles. Check there are life jackets on board and don't board an overcrowded boat. Coverage on the river is poor, so tell your guesthouse which boat you're on before you lose signal.

Save these numbers in your phone before leaving town:

1191: police
1195: ambulance (alternative 030 525 7239)
1190: fire
021 251 128: Tourist Police, Vientiane

The UK government notes that police responses to crime are often limited and suggests asking your accommodation to help with reports. Your eSIM is data only, so you'll be making those calls on your home SIM while roaming. Keep that line switched on, and save your guesthouse's WhatsApp contact as a quicker way to ask for help.

Researched October 2026 · 4 sources

en.wikipedia.org Boten–Vientiane railway - Wikipedia
gov.uk Laos travel advice: safety and security - GOV.UK
gov.uk Laos travel advice: getting help - GOV.UK
gov.uk Laos travel advice: local laws and customs - GOV.UK

7-day itinerary

Seven days in Laos: Vientiane, Vang Vieng and Luang Prabang by train

A week along the Laos–China Railway: a day in the capital, two days among the karst and rivers of Vang Vieng, and four days in and around Luang Prabang for temples, waterfalls and the Mekong. Suits first-time visitors who want an easy, mostly overland route.

Length: 7 days
Bases: 3

When to go November to February is dry and relatively cool, the most comfortable time; March to May is very hot and hazy from field burning, and the June–October rains make roads and river trips harder but turn Kuang Si and the paddy fields green.

Day 1 Vientiane

Vientiane: That Luang, Patuxai and COPE

Wattay airport to the centre is about 15 minutes by road.

Start at Pha That Luang, the gold-covered stupa that is the national symbol, then walk Lane Xang Avenue to Patuxai, the victory monument you can climb for a view down the boulevard. Visit the COPE Visitor Centre to understand the legacy of unexploded ordnance and the prosthetics work done for survivors, then see Wat Si Saket's walls of small Buddha images and end at sunset on the Mekong riverfront.

Signal Lao Telecom 4G is strong across central Vientiane, with 5G in parts of the city centre.
Day 2 Vang Vieng

Train to Vang Vieng and the Tham Chang cave

About 1 hour by fast train from Vientiane to Vang Vieng; book in the LCR app and allow 30–40 minutes to reach the station.

Take a morning train from Vientiane station, which is some way north of the city centre, to Vang Vieng. In the afternoon cross the Nam Song to Tham Chang, a cave with steps up to a viewpoint over the river, then cycle or ride out to one of the Blue Lagoon swimming holes at the foot of the limestone cliffs. Watch the sunset over the karst from the riverbank in town.

Signal 4G is solid in Vang Vieng town and along much of the railway, with brief drops in tunnels; caves have none.
Day 3 Vang Vieng

Vang Vieng: the Nam Song by kayak and Nam Xay viewpoint

Operators collect you from town; Nam Xay is about 20 minutes by road.

Join a licensed operator for a kayak trip down the Nam Song, usually combined with the water cave at Tham Nam, where you pull yourself through on a rope while sitting in a tube. In the late afternoon climb the steep trail to the Nam Xay viewpoint for the view over paddy fields and karst peaks. Stick to marked paths in the countryside, as the UK government warns about unexploded ordnance in rural areas.

Signal Coverage is patchy on the river and in the valleys outside town; you will usually find a signal at the top of Nam Xay.
Day 4 Luang Prabang

On to Luang Prabang and Mount Phousi

About 1 hour by fast train from Vang Vieng; the station is about 20 minutes from the old town by shared van.

Take the train north to Luang Prabang and transfer into the old town on its peninsula between the Mekong and the Nam Khan. In the afternoon walk the lanes of the UNESCO-listed town, past wooden houses and colonial-era shopfronts, and climb the steps of Mount Phousi to Wat Chom Si for sunset over the rivers. Browse the night market on Sisavangvong Road afterwards.

Signal The railway is mostly covered between tunnels, and Luang Prabang's old town has good 4G.
Day 5 Luang Prabang

Wat Xieng Thong, the Royal Palace and Kuang Si Falls

Kuang Si is about 45 minutes by road south-west of town.

In the morning visit Wat Xieng Thong, the 16th-century temple near the tip of the peninsula with its sweeping roofs and glass mosaics, then the Royal Palace Museum and the Haw Pha Bang chapel beside it. In the afternoon go out to Kuang Si Falls, where turquoise pools step down through the forest, and see the bear rescue centre at the entrance before swimming in the lower pools.

Signal Good 4G in town; at Kuang Si you will get a signal near the entrance but little higher up towards the top of the falls.
Day 6 Luang Prabang

Morning alms and the Pak Ou caves

Boats to Pak Ou take about 2 hours upstream and 1.5 hours back; check there are life jackets on board.

If you want to see the morning alms round, watch quietly from across the street at dawn without flash or getting in the monks' way. Later take a boat up the Mekong to the Pak Ou caves, two caves in a limestone cliff filled with thousands of Buddha images, often stopping at a riverside village on the way. Return in the afternoon and visit the Traditional Arts and Ethnology Centre.

Signal Coverage is poor on the Mekong; tell your guesthouse which boat you are on, and expect only weak signal at the caves.
Day 7 Luang Prabang

Luang Prabang and departure

Luang Prabang airport is about 15 minutes from town; the fast train to Vientiane takes about 2 hours.

Spend your last morning at the morning market off Sisavangvong Road or crossing the bamboo bridge over the Nam Khan when it is in place in the dry season, then visit Wat Visoun and its watermelon-shaped stupa. Fly out of Luang Prabang International or take the train back to Vientiane for an international connection.

Signal Reliable 4G in town and at the airport and stations; the train south loses signal in tunnels for short periods.

Staying connected on this route

Set up the LCR app on Wi-Fi before you arrive and book each train leg as soon as your dates are firm; popular departures sell out.
Download offline maps of Vang Vieng and Luang Prabang before the river days; the Nam Song and the Mekong have poor coverage.
Save 1191 (police) and 1195 (ambulance), and keep your home SIM on for calls, since the eSIM is data only.

Itinerary sources · 4

gov.uk GOV.UK foreign travel advice: Laos
whc.unesco.org UNESCO World Heritage: Town of Luang Prabang
tourismlaos.org Lao national tourism portal
en.wikipedia.org Wikipedia: Boten–Vientiane railway

Where this comes from

Information and verification

Each block below says what was checked and when. Anything we cannot date, we do not claim.

Prices and plans: Every price and allowance on this page is read from the live catalog, not typed in.; Verified October 30, 2026
Host networks: The operator list comes from the network partner that carries this eSIM.; Verified October 30, 2026