# Layover at Zagreb Airport: how to make the most of it

> A few hours at Zagreb Airport (ZAG)? Here is what to do, the lounges and whether you can pop into Zagreb.

A few hours at Zagreb Airport (ZAG)? Here is what to do, the lounges and whether you can pop into Zagreb.

## Get online at the airport

Install a MerrSIM eSIM for Croatia (from €1.99, 10 GB €10.99) before departure and you’re online the moment you land at Zagreb Airport — no WiFi hunt, no roaming.

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

## 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 Croatia, 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.

## No registration, no shop queue

Many EU countries require identity verification for local SIM cards, which means a queue, a shop and sometimes even a local address. A travel eSIM skips all of that: it is sold as an international data service, with no passport and no contract. You have it ready before you set off for Croatia, so you land and are online immediately — no time wasted at the airport and no risk of surprise roaming bills.

## Coverage and 5G speed in Croatia

The eSIM connects to the main local operators, so you get the same coverage as a local, including 4G/LTE and 5G where available. In the cities and tourist areas of Croatia the signal is strong and stable; in very remote villages or mountains it can weaken, as with any operator. Hotspot is included, so you can share the connection with your laptop or a travel companion at no extra cost.

## 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 Croatia, 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 Croatia, 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 Croatia?
Activate a MerrSIM eSIM for Croatia (from €1.99, 10 GB €10.99) 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/transit-layover-zag-en