# Car rental at Belgium's airports

> Prices, terms and what to check when renting a car at Brussels Airport or Belgium's other airports.

Prices, terms and what to check when renting a car at Brussels Airport or Belgium's other airports.

## Get online at the airport

Install a MerrSIM eSIM for Belgium (from €1.49, 10 GB €8.99) before departure and you’re online the moment you land at Brussels Airport — no WiFi hunt, no roaming.

[MerrSIM — eSIM Belgium](https://merrsim.com/destinations/esim-plans-for-belgium)

## Does your phone support eSIM?

Before you buy, check two things. First, the phone must be eSIM-compatible: iPhone XR/XS and newer, Samsung Galaxy S20 and newer, Google Pixel 3 and newer, and many recent Motorola, Huawei and Oppo models. Second, it must be carrier-unlocked. You can verify by dialling *#06# — if an EID number appears, your phone supports eSIM. This saves you any surprises when you arrive in Belgium.

## Common mistakes to avoid

Three mistakes often spoil the start of a trip. First: buying the eSIM at the last minute at the airport, when you have no WiFi to install it — do it at home. Second: forgetting to switch on data roaming for the eSIM line, which makes it look like it is not working. Third: leaving mobile data on your home SIM, which racks up roaming charges. Check these three and your connection in Belgium will be trouble-free.

## How an eSIM works

An eSIM is a digital SIM built into your phone: there is no physical card to insert. You buy it online, get a QR code by email and scan it in your settings. Once installed, the profile lives on your phone and activates when you reach Belgium, connecting automatically to a local partner network. You can keep your main SIM at the same time, so your number still gets calls and texts while the eSIM handles data.

## eSIM versus roaming

Roaming with your home carrier can be expensive outside bundles — sometimes several euros per gigabyte, with bills that land after the trip. A local eSIM turns that into a fixed price you know up front: you pay in advance, you know exactly how many GB you have, and there are no hidden fees. For a trip to Belgium, that means peace of mind and often a real saving compared with leaving roaming switched on unchecked.

## How much data you really need

For normal use — maps, messaging, social media and the odd video — budget about 300–700 MB a day. A light traveller is fine with 3–5 GB for a week, while anyone doing video calls, streaming or laptop hotspot will want 10–20 GB. In Belgium, download offline maps and use hotel WiFi for big downloads; that way a 10 GB plan comfortably lasts two weeks. If you run out, you buy a new plan in the app with no waiting.

## FAQ

### How do I get online as soon as I arrive in Belgium?
Activate a MerrSIM eSIM for Belgium (from €1.49, 10 GB €8.99) by QR before departure; you connect automatically at the airport.


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Author: Etnik Beqiri  
Published: 2026-05-28  
Source: https://merrsim.com/en/blog/makina-me-qira-aeroport-belgium-en