AirHint found the following cheapest return flights from London (LTN) to Copenhagen (CPH) in December 2025 (see full year).

Return flights

10 Dec - 17 Dec	Wizz Air
10 Dec - 15 Dec	Wizz Air
12 Dec - 15 Dec	Wizz Air UK
15 Dec - 17 Dec	Ryanair
08 Dec - 15 Dec	Wizz Air UK
09 Dec - 11 Dec	Wizz Air
06 Dec - 10 Dec	Wizz Air UK
10 Dec - 14 Dec	Wizz Air
10 Dec - 13 Dec	Wizz Air
10 Dec - 12 Dec	Wizz Air
10 Dec - 08 Jan	Wizz Air
31 Dec - 04 Jan	easyJet
31 Dec - 01 Jan	easyJet
18 Dec - 07 Jan	easyJet
26 Dec - 05 Jan	easyJet
30 Dec - 01 Jan	easyJet
31 Dec - 02 Jan	easyJet
30 Dec - 04 Jan	easyJet
18 Dec - 04 Jan	easyJet
24 Dec - 01 Jan	easyJet

Also check the deals for one-way flights from London to Copenhagen in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from London to Copenhagen in December from $110

Return flights