Buying a SIM card in Denmark: airports, shops and the eSIM shortcut

The passport rule comes first

Denmark requires ID registration for prepaid SIM cards. You need your passport at the counter, every time, at every outlet. This is not a formality that gets waived at a kiosk — it shapes how long buying takes and it is the single reason most short-stay visitors end up preferring an eSIM.

Budget around $13 for a local prepaid SIM at airport pricing. The four networks are TDC / YouSee, Telia Denmark, Telenor Denmark and 3 Denmark.

At the airport

What is actually available, and how long you will stand there:

Copenhagen is the only one with real choice, and the only one where the queue is long enough to matter after a flight. Terminals 2 and 3 both have outlets, so if one has a line, check the other. There are also vending machines at CPH, which is the fastest option on the ground but gives you no one to ask when something does not activate.

Billund and Aarhus are convenience purchases rather than proper carrier stores — fine if you want a working number immediately, limited if you want to compare bundles.

In the city

Carrier stores in the city centres are the better buy if you have the time. Staff can register the SIM properly, explain the bundle, and sort out an activation that has not gone through — none of which a vending machine does. The trade is that you spend your first hour in the country doing errands.

The honest position: for a trip of a week or less, walking into a Copenhagen carrier store to save a few dollars over an airport kiosk is not worth the detour. For a stay of several weeks, it is.

Wifi will carry you between

Denmark's free wifi is genuinely good, and it means arriving without data is inconvenient rather than a problem. Copenhagen operates free city wifi (CopenhagenFreeWiFi) in public spaces. All the airports have it, as do cafés and hotels essentially everywhere. You can land, connect at the terminal, and sort your SIM out later that day without being cut off.

The eSIM alternative

An eSIM installed before departure removes the passport step, the queue and the choice-under-pressure. It activates on landing.

Airalo prices were read from Airalo's own site on 13 August 2026 and Nomad's from its own on 17 August 2026. Saily figures were read off Saily's own site on 18 August 2026. An earlier version of this table understated Nomad's 5 GB; that number had never been checked.

Where the local SIM still wins: if you need a Danish phone number for calls and texts — booking confirmations, restaurant callbacks, a rental deposit — travel eSIMs here are data-only and a $13 local SIM does something they cannot. If you only need data, the eSIM is cheaper at every plan size worth buying and skips the passport entirely.

One practical check before you commit: confirm your handset supports eSIM. See our eSIM-compatible phones list if you are unsure, and our Denmark hub for the full plan comparison.