Most of the smart ways to get from an Asian airport to your hotel - Grab, Bolt, Gojek, Uber, a pre-booked driver who messages you on arrival - need a working internet connection. The problem is that you land without one. This guide compares the three realistic options (eSIM, local SIM at the airport, home roaming) and shows how to be online before you even reach the baggage belt.
The classic airport scam relies on you having no alternatives. A tout offers a fixed price, you have no idea what the ride should cost and no way to check. With data you can open Grab, see the fare before you book, share the trip with a friend and message a pre-booked driver. Without data you are stuck with whoever is standing closest. Being online in the first five minutes is the cheapest scam protection there is, and it also lets you check your hotel address, translate a word or two and see where the taxi is actually heading.
An eSIM is a digital SIM that you add to your phone by scanning a QR code or tapping an install link. You can do it at home on Wi-Fi days before the flight. Your normal number stays active on the physical SIM, so you still receive bank codes and calls, while the eSIM carries the data. When you land you switch the data line to the travel eSIM and you are online as the aircraft door opens.
There is no kiosk, no passport copy and no sales pitch. The limits: your phone must support eSIM and be network-unlocked, and most travel eSIMs are data-only, so use WhatsApp, FaceTime or Grab chat for calls.
Airport SIM counters exist in Bangkok, Phuket, Bali, Hanoi, Kuala Lumpur and most other hubs. The advantages are a local phone number and often generous data for the price. The downsides are queues after a long flight, a passport check and registration in several countries, airport markups compared with town shops, and the risk of a counter that is closed on a late-night arrival. If you do buy a SIM, ask the staff to install and test it before you walk away, and keep your original SIM safe.
A physical SIM also means you cannot use your home SIM at the same time unless your phone has dual SIM.
Roaming works the moment you land with no setup, which is its only real advantage. Many plans include some EU or Nordic roaming but treat Asia as an expensive zone with daily fees or per-megabyte charges. Check your provider's daily roaming pass before you leave. For a short trip with light use it can be fine; for a two-week trip with maps, ride-hailing and photo uploads it is normally the costliest option.
Turn off background data and automatic backups if you do roam, so the bill does not surprise you next month.
First check that your phone supports eSIM and is not locked to your carrier. Recent iPhones and Pixels do, as do many Samsung models. Buy the plan for the country or region you are visiting, then open the install link or scan the QR code on a Wi-Fi connection. Name the line something obvious like Travel. Leave it switched off for mobile data until you land, then set it as the data line and turn on data roaming for that line only.
Take a screenshot of the QR code or keep the confirmation email, because many eSIMs can only be installed once.
Maps, Grab and messaging use very little data. A week with normal browsing, maps and some photo sharing usually fits in a few gigabytes; streaming video or tethering a laptop needs much more. If you visit several countries, a regional Asia plan is simpler than buying one eSIM per border. Check when the validity period starts and that the plan covers each country on your route.
If you are unsure, choose one size up - running out of data in the taxi is the problem you were trying to avoid.
Before you fly: install the eSIM, download offline maps of the city, save your hotel name and address in the local language, and read the airport guide for your arrival airport on taxi.asia. On landing: switch the data line to the eSIM, open your ride-hailing app or message your pre-booked driver, and compare the fare with the typical price in our airport guide. If you prefer certainty, pre-book a fixed-price transfer so the price is agreed before you land, and use the eSIM as your backup for everything else.
Every issue discussed in this guide - overcharging, scams, language barriers, unreliable apps, long queues - has one simple solution: pre-book your airport transfer before you fly. A pre-booked transfer gives you a fixed price confirmed in advance, a named driver tracking your flight and waiting at arrivals, and zero negotiation. Most vehicle classes can be cancelled free of charge up to 5 hours before pickup, so booking early costs you nothing.
Start by checking our airport guides below for specific local advice, prices and transport options at your arrival airport.
Read our detailed transfer guides for airports mentioned in this article:
Specific route guides with prices and transport comparisons: