Quick answer
The easiest way to have data at Wattay International Airport (VTE) is to install a Laos eSIM on Wi-Fi the day before you fly, then turn on Data Roaming for the eSIM line when you land. Your plan days only start when the eSIM first connects in Laos, so installing early costs nothing, and you can book a LOCA ride or message your hotel before you leave the terminal.
Should I buy a SIM at Wattay or an eSIM before I fly?
You can buy a local SIM after landing, but that means a queue, showing your passport, and waiting while someone sets up the card. With an eSIM bought before the trip, the line is already on your phone and you only need to switch it on.
An eSIM also keeps your home SIM in the phone, so SMS and bank codes still reach your usual number while the Laos line handles mobile data.
When should I install the eSIM?
Install it on Wi-Fi the day before you fly. Plan days start when the eSIM first connects to a network in Laos, not when you install it, so installing at home uses no days. The QR code arrives by email after payment and also stays on your order page.
- 1Scan the QR on Wi-Fi and label the new line “Laos”.
- 2On landing, turn off airplane mode.
- 3Turn on Data Roaming for the Laos line, and choose it for mobile data.
- 4Keep Data Roaming off on your home SIM.
- 5Open a map before you leave the terminal, so you know the eSIM is working.
How do I get from Wattay into Vientiane?
LOCA is the common ride-hailing app in Vientiane, and with data you can see the price before you book and send the driver to your exact pickup point. Taxis, tuk-tuks, and hotel pickups are other options.
If your hotel arranges a pickup, message the driver from the arrivals hall once your data is on. Share your live location if you cannot find each other.
What if I forgot to install the eSIM before the flight?
Find a Wi-Fi connection and open the email or your order page. You need the QR on a second screen to scan it, or you can type the manual install code shown under the QR. Install the eSIM, turn on Data Roaming for it, and pick it for mobile data.
Frequently asked questions
Will installing the eSIM at home use up my plan days?
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No. Days start when the eSIM first connects to a network in Laos. Install it on Wi-Fi the day before you fly, and the plan waits until you land at Wattay.
Do I need data roaming on at Wattay?
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Yes, for the eSIM line. Unitel asks for it for the best coverage, and there is no extra charge. Keep roaming off on your home SIM so your own carrier does not charge you.
Can I use LOCA from the airport?
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LOCA is the common ride-hailing app in Vientiane. Once the Laos line is on for mobile data, it works as it would on any other connection, including the pickup map.
Related guides
Laos trip checklist: eSIM, entry rules, and apps
What to sort out in the days before you fly.
How to install a Laos eSIM on iPhone
Scan the QR, label the line, and turn on Data Roaming.
Laos eSIM not working? Fixes for no data after landing
Five checks to run in the arrivals hall.
Vientiane eSIM guide: data for LOCA, tuk-tuks, and the Mekong riverside
A relaxed capital on the Mekong, with tuk-tuks on every corner.