Copenhagen (CPH) to London (LON): 609 miles (979 km) great-circle, about 1h 45m nonstop by our estimate. Cheapest fare observed: $48 round-trip on Ryanair, nonstop, departing June 17, 2026.
$48 round-trip, Ryanair FR7395, departing 2026-06-17 at 23:15, returning 2026-06-24. The recorded itinerary left on a Wednesday, returning on a Wednesday 7 nights later; the fare was observed 53 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $48, it ranked 3rd of the 30 round-trip fares we recorded from CPH (median $164). That is 7.9 cents per great-circle mile (round-trip price over one-way distance), below the CPH median of 18.4 cents across 30 round-trip routes.
Routes from CPH of similar length: Paris (624 mi) at $52 and Vienna (545 mi) at $73.
Ryanair had the cheapest fare on 10 of 30 CPH routes. It is the 19th longest of the 30 routes we track from CPH.
Of 49 departure airports with a fare to London, Copenhagen (CPH) ranked 3rd at $48. Lowest: $46 from Dublin (DUB); highest: $1356 from Sydney (SYD); 14 nonstop. Cheapest-fare airlines (routes): Ryanair (7), easyJet (4), Etihad (4), Frontier (4), Air Canada (3) and WestJet (3), plus 19 more.
That depends on your passport and trip, so check the official source for United Kingdom: GOV.UK: check if you need a UK visa. 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/Copenhagen, Europe/London; flight time is our estimate.