Getting an eSIM at Athens Airport (ATH): Traveler's Guide

Overview

Athens Airport (ATH) handles around 28 million passengers a year and offers free terminal wifi plus Cosmote, Vodafone and Wind SIM shops in arrivals. The fastest way to get connected is an eSIM installed before you walk out of the gate, so your data is ready when you land and you skip the shop queue. This guide covers the wifi, the SIM shops and the step-by-step path from plane to connected.

Airport Wi-Fi

Available

Yes

Quality

Free terminal wifi is fine for messaging, maps and email, but speeds drop when the terminal is busy, so it is best used for installing your eSIM rather than for streaming.

Cost

Free for all passengers, with no payment needed.

Time limit

Sessions can be limited or may need you to reconnect through the login page, so do not rely on one long connection.

SIM cards at the airport

Sold at the airport

Yes

Where to buy

Cosmote, Vodafone and Wind all have SIM shops in the arrivals area, so you can find them after baggage reclaim and customs. Staff can set up a prepaid SIM for you, but you will need to swap your physical SIM and keep your home SIM safe while you travel.

Typical prices

Tourist prepaid SIMs from the three local networks vary by data allowance and validity, and airport shop prices are often higher than city shops. Check the current price at the counter before you commit.

Wait times

Expect a short wait when the shop is quiet and a longer one after several arrivals land together. Registration with ID and the SIM swap itself add several minutes on top of the queue.

Why an eSIM

Install your eSIM before you fly and you can have mobile data the moment you land. There is no queue, no ID registration at a counter and no swapping SIM cards, so your home number stays active for calls and bank codes. The delivery email has an Install on iPhone (iOS 17.4+) or Install on Android (Android 10+) button, and one tap installs the eSIM. You can also scan the QR code from another screen or send it to a travel companion. Prices vary by destination and are set by each store.

Step by step

• Before you fly, buy a Greece eSIM and open the delivery email on your phone. Check that your phone supports eSIM and is unlocked.
• Tap Install on iPhone (iOS 17.4+) or Install on Android (Android 10+) while you are on home or airport wifi. The QR code is the backup: use it to install from another screen or share it with someone you are travelling with.
• Keep the eSIM line switched off until you land, and leave your home SIM active for calls and text codes if you wish.
• When the plane lands, turn off airplane mode, switch on the new eSIM line and turn on data roaming for that line only.
• Check that mobile data works, then open your maps app and ride-share or transport app before you reach the arrivals hall.
• If the signal does not appear, restart the phone, confirm the eSIM line is selected for mobile data and try the free airport wifi to reach support.

Pro tips

• Install the eSIM before you leave home. Airport wifi is free but can be slow at busy times, and a pre-installed eSIM avoids that wait.
• Set your eSIM as the mobile data line and keep your home SIM for calls and text codes. Turn off data roaming on the home line to avoid surprise charges.
• Download an offline map of Athens before you land so navigation still works if the signal is patchy in the metro or terminal.
• The airport shops are useful if you want a Greek phone number. For data alone, an eSIM is quicker.
• Save the official taxi and transport details in your phone before you leave the terminal, as your data connection is the easiest way to confirm fares and routes.

If you missed it

If you reach the city without data, Cosmote, Vodafone and Wind all have shops and retail partners around central Athens, and many cafes and hotels offer wifi. You can also buy and install an eSIM on any wifi connection, so a hotel or cafe network is enough to get online.