Berlin and Kaliningrad are not that far apart, but traveling between the two cities has been quite awkward since Air Berlin went bankrupt. The former Königsberg and Berlin share a long history that has changed significantly in the aftermath of the Second World War.
Kaliningrad is Russia's “outpost” and is located between the Baltic states. The former Königsberg has hardly been discovered in terms of tourism, but it has a lot to offer. Economically there are many business relationships between the economies of the two cities.
Nevertheless: Anyone who wanted to go from Berlin to Kaliningrad (or vice versa) had to fly tedious detours in recent years. That is now over, because the Russian airline Pegas Fly has started a non-stop connection. This is initially operated once a week. A second circulation is to be added in November 2021. As a rule, the carrier uses Embraer 190 regional jets.
Along with Saint Petersburg, Kaliningrad is one of two regions to which tourists can travel with an electronic visa. This is free of charge and is available at this link forgive. Attention: Due to the corona pandemic, no simplified entry permits are currently being issued. This means that a trip to the consulate or embassy is temporarily not spared.