Getting online at Cancún International Airport

After customs, you walk through a hall where people offer transport, tours and SIM cards. Reports from 2026 differ on whether Telcel itself has a counter (one is often placed in Terminal 3, near baggage claim and the exits), and the SIM stands in the terminals are known for tourist prices: travelers report paying around US$50 for a few gigabytes. The same Telcel prepaid plans cost far less in town, at Telcel shops and OXXO convenience stores, where packages start at about 100 to 200 pesos (October 2026).

Whichever you buy, a new Mexican line now has to be registered to you before it works normally, and a visitor does that with a passport. Bring it, and allow time for the registration on top of the queue. A travel eSIM from abroad is not a Mexican line and needs no registration: see Mexico SIM card or eSIM in 2026.

• Install before you fly, switch on when you land. Add the eSIM at home on Wi-Fi, then turn on data roaming for the eSIM line once you are off the plane. You will be online at immigration, before the Wi-Fi login or the SIM hall.
• Know your terminal. Terminals 2, 3 and 4 are separate buildings linked by a free shuttle. Tell your driver or hotel which one you land at, and message them once you are through customs.
• Keep walking. If your ride is booked, walk past the people offering transport and SIM cards inside the hall, out to the meeting area: drivers wait outside, not in baggage claim or customs.
• Check your home plan first. Many US plans include Mexico, some only at slow speeds: will my phone work in Mexico? If yours does not, turn data roaming off on your home line before you land.
• Download offline maps of the Yucatán before a road trip to Tulum, Valladolid or the cenotes: coverage drops inside cenotes, in the jungle around ruins and on long stretches of road.
• Save your bookings to the phone: ADO bus and Tren Maya tickets, transfer confirmations and hotel addresses, so they open without a signal.