If you are visiting Denmark, you must check whether you need a visa, depending on your nationality and the purpose of your visit.
Denmark is a member of the European Union. Consequently, travel to and from Denmark adheres to EU regulations, and the specific entry requirements can vary based on your origin and nationality.
Citizens from the EU countries can travel freely to Denmark, but citizens from other countries may need a visa if they come from outside the Schengen countries.
Denmark participates in the European Union's Schengen Agreement, which means that when travelling to or from another Schengen EU country, you typically do not need to display your national ID card or passport.
You can easily get this travel permit through an online process with iVisa.com
Ivisa from U.S. to Denmark
Carrying your passport or ID card with you is still advisable as a form of identification, as certain airline operators may require it even for travel within the Schengen area.
The Schengen visa usually grants you the right to travel in the Schengen region for a maximum of 90 days.
The Schengen Agreement encompasses the following countries: Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, and Switzerland.