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

Return flights

27 Aug - 03 Sep	Lufthansa
29 Aug - 03 Sep	Lufthansa
26 Aug - 03 Sep	Lufthansa
13 Aug - 27 Aug	Lufthansa
30 Aug - 09 Sep	KLM
25 Aug - 02 Sep	KLM
28 Aug - 02 Sep	KLM
28 Aug - 04 Sep	KLM
27 Aug - 02 Sep	KLM
15 Aug - 20 Aug	Lufthansa
20 Aug - 26 Aug	Lufthansa
29 Aug - 05 Sep	Lufthansa
19 Aug - 26 Aug	Lufthansa
28 Aug - 07 Sep	KLM
21 Aug - 26 Aug	KLM
25 Aug - 28 Aug	KLM
11 Aug - 20 Aug	Lufthansa
25 Aug - 26 Aug	KLM
22 Aug - 27 Aug	Lufthansa
26 Aug - 28 Aug	SWISS

Also check the deals for one-way flights from London to Riga 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 Riga in August from $263

Return flights