AirHint found the following cheapest return flights from Lisbon (LIS) to Copenhagen (CPH) in August 2025 (see full year).

Return flights

29 Aug - 07 Sep	KLM
27 Aug - 02 Sep	KLM
29 Aug - 08 Sep	KLM
30 Aug - 08 Sep	KLM
29 Aug - 02 Sep	KLM
27 Aug - 03 Sep	KLM
29 Aug - 04 Sep	KLM
29 Aug - 06 Sep	KLM
30 Aug - 02 Sep	KLM
13 Aug - 20 Aug	KLM
13 Aug - 16 Aug	KLM
30 Aug - 01 Sep	KLM
13 Aug - 17 Aug	KLM
13 Aug - 19 Aug	KLM
27 Aug - 31 Aug	KLM
29 Aug - 31 Aug	KLM
14 Aug - 21 Aug	KLM
14 Aug - 18 Aug	KLM
26 Aug - 28 Aug	TAP
27 Aug - 30 Aug	KLM

Also check the deals for one-way flights from Lisbon to Copenhagen in August.

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 Lisbon to Copenhagen in August from 188€

Return flights