The best eSIM for Copenhagen in 2026.

Getting online at Kastrup airport

Copenhagen Airport, CPH, is at Kastrup on the island of Amager, a few kilometres south east of the centre. Switch your eSIM on as the plane lands and the data is usually connected by the time you reach the baggage hall, long before you are on a train.

The metro and the regional trains both run from the airport into town in roughly a quarter of an hour, and the trains also reach Copenhagen Central Station. Check the next departure and the stops near your hotel in a map app on the day, since services change.

The metro, the DOT app and the Rejsekort

Greater Copenhagen sells one ticket system across the metro, the S-train, regional trains and buses, priced by zone. The DOT app (Din Offentlige Transport) sells these tickets on your phone, and the airport sits in an outer zone, so a ride from there costs more than a ride between two central stops. Check the zones and the current fares in the app.

The Rejsekort is a plastic travel card that you tap in and out. It suits a long stay more than a weekend, and you need to buy and load it first, so a phone ticket is simpler for most visitors. Inspectors do check, so keep the ticket open and ready, and buy it before you board rather than on the platform.

Cycling with a phone mount

Copenhagen is built around the bicycle, and hiring one is the quickest way to cover the harbour, the parks and the bridges. A phone mount on the handlebars lets you follow a route without stopping, and a map in cycling mode gives you the bike lanes rather than the car roads.

Data does the work here. Download the area for offline use before you set off in case you ride out of range, keep the screen brightness up in daylight, and take a battery pack, because a live map drains a phone fast. Stop to look at the screen rather than reading it while you ride.

Signal on the metro, and across the bridge to Malmo

The metro runs underground through the city, and the stations and trains are generally covered by the Danish networks. Coverage varies by network, so check before you rely on a live stream or a call in one particular tunnel. Above ground, the centre is well covered.

The Oresund Bridge and the tunnel link Copenhagen with Malmo in Sweden in about half an hour by train. Near the water your phone can switch to a Swedish network, and a Denmark plan does not work on it. If a day in Malmo is on your list, check what your plan covers before you go, or choose a Europe plan.

Which plan fits a Copenhagen trip

A long weekend: Ringo Light sells 3 days of unlimited data at $8.99, against $11 at Nomad, $11.50 at Airalo and $11.90 at Holafly.

A week: Nomad sells 7 days of unlimited at $25, Airalo $26.50, Saily $26.99 and Holafly $27.50, and Ubigi 20 GB at full speed, then 2 Mbps, for $19. Ringo Light sells no 7-day plan, but its 2 weeks of unlimited data costs $16.99, less than any of those weeks, so you simply have days left over.

A fortnight or a month, for instance Copenhagen first and then a train on to Aarhus: Ringo Light 2 weeks at $16.99 or 30 days at $32.99. Both cover the whole of Denmark, with nothing to change when you leave the city.

If your phone plan is from the EU

EU roaming applies for EU visitors. If your home plan comes from an EU country, using it in Copenhagen is usually included at your home price, within a fair use limit, so check your own plan before you buy anything. Visitors from outside the EU usually pay a roaming fee, which is where a travel eSIM saves money.

What Ringo Light is

Ringo Light is our own data eSIM. For Denmark, Copenhagen included, it sells three trips, all unlimited data at full speed for their length: 3 days at $8.99, 2 weeks at $16.99 and 30 days at $32.99. Nothing renews. The eSIM arrives by email in seconds and installs in one scan, no app.

If a fixed amount of data is enough, Ubigi sells 10 GB for 30 days at $11, under our 2 weeks, and Ringo Light sells no buckets. The card to buy it is further up this page, just after the side-by-side table.