AirHint found the following cheapest return flights from London (LCY) to Kaunas (KUN) in August 2025 (see full year).

Return flights

25 Aug - 27 Aug	KLM
25 Aug - 28 Aug	KLM
20 Aug - 26 Aug	SWISS
13 Aug - 21 Aug	KLM
25 Aug - 01 Sep	KLM
07 Aug - 13 Aug	KLM
21 Aug - 26 Aug	KLM
28 Aug - 01 Sep	KLM
18 Aug - 29 Aug	KLM
25 Aug - 29 Aug	KLM
23 Aug - 27 Aug	KLM
18 Aug - 25 Aug	KLM
31 Aug - 07 Sep	KLM
24 Aug - 03 Sep	British Airways

Also check the deals for one-way flights from London to Kaunas 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 London to Kaunas in August from $413

Return flights