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

Return flights

29 Aug - 10 Sep	Wizz Air
30 Aug - 12 Sep	Wizz Air
25 Aug - 10 Sep	Wizz Air
24 Aug - 12 Sep	Wizz Air
26 Aug - 30 Aug	Wizz Air
19 Aug - 21 Aug	Wizz Air
24 Aug - 14 Sep	Wizz Air
30 Aug - 09 Sep	Ryanair
25 Aug - 28 Aug	Wizz Air
29 Aug - 09 Sep	Ryanair
19 Aug - 28 Aug	Wizz Air
12 Aug - 12 Sep	Ryanair
18 Aug - 28 Aug	Ryanair
23 Aug - 28 Aug	Wizz Air
30 Aug - 04 Sep	Wizz Air
28 Aug - 04 Sep	Wizz Air
20 Aug - 28 Aug	Wizz Air
17 Aug - 30 Aug	Ryanair
01 Aug - 04 Aug	Wizz Air UK
15 Aug - 21 Aug	Wizz Air

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 147€

Return flights