Here are a few suggestions for your next trip from Sønderborg

In 3 hours, you can reach Århus, Odense.

In 4 hours, you can reach Kodaň, Hamburk.

In 5 hours, you can reach Malmö, Aalborg.

In 6 hours, you can reach Berlín.

In 8 hours, you can reach Göteborg, Kolín nad Rýnem.

In 9 hours, you can reach Amsterdam, Utrecht.

In 10+ hours, you can reach Paříž, Budapešť, Varšava, Vídeň, Stockholm, Praha, Brusel, Záhřeb, Oslo, Bratislava...