MEX Airport Wi-Fi: How to Get Free Wi-Fi at Mexico City Airport (and When to Skip It)

Quick answer: free Wi-Fi at Mexico City Airport

Yes, Mexico City International Airport (AICM, airport code MEX) has free Wi-Fi in both terminals. According to the airport's official announcement, you look for the network #AICM_FREE_WIFI and connect with a single click.

• Network name: #AICM_FREE_WIFI (with the # at the start, as AICM writes it).
• Where it works: Terminal 1 and Terminal 2, from the public walkway areas all the way to the gate lounges.
• Time limit: up to 2 hours without interruption. After that, you accept the terms of use again to stay connected.
• Cost: free. AICM describes it as open to everyone, without distinction.
• Need data outside the terminal? Airport Wi-Fi stays at the airport. eSIMFOX Mexico plans start at €3.99 for 1 GB (product page).

How to connect to #AICM_FREE_WIFI

The steps are the same on iPhone and Android. Public networks like this one use a short sign-in page; Apple calls them captive networks (Apple Support).

1. Open your phone's settings and turn on Wi-Fi.
2. Tap #AICM_FREE_WIFI in the list of networks.
3. Wait for the sign-in page and accept the terms of use. Apple notes that public networks may also ask for an email address.
4. No sign-in page? On iPhone, tap the info button next to the network name, then Join Network.
5. After 2 hours, accept the terms again when asked, and you stay online.

Only join the network name AICM publishes. If you see similar names, skip them.

Is there a time limit?

Yes. AICM says everyone can connect for up to two hours without interruption and then has to accept the network's conditions of use again to keep going. AICM does not mention a daily cap or a paid upgrade, so we could not confirm either (checked November 6, 2026).

How fast is the Wi-Fi?

AICM says the network, launched as part of the airport's renovation, uses Wi-Fi 7: 800 antennas that each transmit at up to 2.5 Gbps and serve up to 200 users, plus two redundant 50 Gbps links per terminal. Those are capacity figures for the whole network, not the speed your phone will get. AICM does not publish a speed per user, and we have not measured it, so we do not quote one.

Wi-Fi in Terminal 1 and Terminal 2

Both terminals are covered by the same network. Here is what the official AICM pages list for each terminal (checked November 6, 2026):

Shop hours come from AICM's service directory and can change. Need to switch terminals? The free Aerotrén connects Terminal 1 and Terminal 2 daily from 5:00 a.m. to 11:00 p.m., and you need your boarding pass to ride it (AICM).

Mexico City Airport Wi-Fi not working? Quick fixes

1. Check that Wi-Fi is on and Airplane Mode is off.
2. Make sure you joined #AICM_FREE_WIFI and not a similar-looking network.
3. No sign-in page? Tap the info button next to the network name and choose Join Network, then wait for the login screen.
4. Online for about two hours and suddenly cut off? Accept the terms of use again; AICM asks for this after each 2-hour session.
5. Restart your phone and join the network again.
6. Still stuck? Ask at an AICM information desk (6:30 a.m. to 10:00 p.m. in both terminals), or switch to mobile data.

Is the free Wi-Fi at MEX safe?

AICM says the network has a robust security scheme with advanced mechanisms to protect users' data and privacy. The US Federal Trade Commission adds that, because most websites use encryption, "connecting through a public Wi-Fi network is usually safe" (FTC). Look for the lock symbol or https in your browser.

• Use strong passwords and turn on two-factor authentication where you can (FTC).
• Keep your phone and browser updated (FTC).
• Encryption does not protect you from scam websites, so do not enter card details on a page that looks off (FTC).

Is there Wi-Fi in Mexico outside the airport?

At the airport, yes: #AICM_FREE_WIFI covers both terminals. Away from the airport, free Wi-Fi depends on where you are, and we could not open the Mexico City government's public Wi-Fi pages on November 6, 2026, so we do not list city network names here. If you need to be online in the taxi, in the street or on a day trip, plan on mobile data.

When a Mexico eSIM is the better choice

Free airport Wi-Fi is great while you wait at the gate. A Mexico eSIM makes more sense when:

• you need maps, messages or a ride-hailing app as soon as you walk out of the terminal;
• you have a long layover and do not want to accept the terms again every two hours;
• you land late: the Telcel shops AICM lists close at 7:00 p.m. in Terminal 1 and 10:00 p.m. in Terminal 2;
• you are traveling on to Cancún, Tulum or the Riviera Maya, which the eSIMFOX product page lists as covered.

What you get with an eSIMFOX Mexico eSIM, according to the product page: the Movistar, AT&T and Altan networks, 4G/5G where available, data only (no Mexican phone number), no ID verification and 24/7 support on WhatsApp. Your home SIM can stay active for SMS. The validity starts with the first network connection in Mexico, not when you buy, and you can top up without a new eSIM.

Prices are in euros as listed on esimfox.com; the product page can also show them in US dollars. The data calculator on the product page suggests 5 GB for a week of maps and messages (about 0.5 GB a day plus a 20% reserve). Pick 1 GB for a short stopover, and 10 GB for longer trips or if you stream.

New to eSIMFOX? The code MEXICO10 takes 10% off your first eSIM (new customers only, one use per account).

Forgot to install the eSIM before your flight?

Use #AICM_FREE_WIFI to buy and install it at the airport. If the QR code is on the same phone, choose to enter the details manually and paste the SM-DP+ address and activation code from your email. Then turn on the eSIM line and data roaming for it. Our installation guide walks you through it, and the compatibility list shows whether your phone supports eSIM.

Sources

• AICM: Bulletin 41/2026, free Wi-Fi 7 in both terminals, Information desks, Communications directory, Aerotrén, checked November 6, 2026.
• Apple Support: Use captive Wi-Fi networks, checked November 6, 2026.
• Federal Trade Commission: Are public Wi-Fi networks safe?, checked November 6, 2026.
• eSIMFOX: eSIM Mexico product page, prices checked November 6, 2026.

Related guides

• Best eSIM for Mexico: plans, prices and coverage
• North America eSIM: USA, Canada and Mexico
• JFK Airport Wi-Fi: free network and how to connect
• ATL Airport Wi-Fi: free networks and a safer alternative
• Gatwick Airport Wi-Fi: how to connect
• What is an eSIM?