Helsinki (HEL) to Copenhagen (CPH): 554 miles (892 km) great-circle, about 1h 35m nonstop by our estimate. Cheapest fare observed: $154 round-trip on Air Baltic, with 1 stop, departing July 24, 2026.
$154 round-trip, Air Baltic BT308, departing 2026-07-24 at 21:20, returning 2026-07-26. The recorded itinerary left on a Friday, returning on a Sunday 2 nights later; the fare was observed 90 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $154, it ranked 4th of the 30 round-trip fares we recorded from HEL (median $288). That is 27.8 cents per great-circle mile (round-trip price over one-way distance), close to the HEL median of 28.7 cents across 30 round-trip routes.
Routes from HEL of similar length: Moscow (542 mi) at $543 and Warsaw (584 mi) at $35.
Air Baltic had the cheapest fare on 6 of 30 HEL routes. It is the 26th longest of the 30 routes we track from HEL.
Of 10 departure airports with a fare to Copenhagen, Helsinki (HEL) ranked 4th at $154. Lowest: $75 from Prague (PRG); highest: $926 from Charlotte (CLT); 5 nonstop. Cheapest-fare airlines (routes): airline MW (2), Ryanair (2), Air Baltic (1), Air India (1), Icelandair (1) and Jazz Aviation (1), plus 2 more.
That depends on your passport and trip, so check the official source for Denmark: European Commission: Schengen visa policy. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Helsinki, Europe/Copenhagen; flight time is our estimate.