Scandinavian airline SAS will begin services from Cornwall Airport Newquay in June 2019.
The Star Alliance member will begin a twice-weekly service from Newquay to Copenhagen on Mondays and Fridays.
Services will leave Newquay at 19.00, while return flights will touch down at 18.20.
The new service also allows for passengers to connect onto a network of more than 70 onward destinations in Europe, Asia and North America via a transfer in Copenhagen.
Al Titterington, managing director at Cornwall Airport Newquay, said: “This is a route not only for the many Scandinavians wanting to explore Cornwall and the South West of the UK, but also for our local catchment, which now have flights designed perfectly for an extended weekend break in one of Europe’s coolest capital cities.
“Adding to our confirmed direct European services to Alicante, Cork, Dublin, Düsseldorf, Faro and Stuttgart next summer, we’re sure that Copenhagen will prove just as popular.”