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

Return flights

23 Aug - 27 Aug	Norwegian
22 Aug - 29 Aug	Norwegian
25 Aug - 26 Aug	Scandinavian Airlines
28 Aug - 07 Sep	Norwegian
24 Aug - 07 Sep	Norwegian
24 Aug - 25 Aug	Norwegian
25 Aug - 25 Aug	Scandinavian Airlines
22 Aug - 23 Aug	Norwegian
17 Aug - 21 Aug	Norwegian Air Sweden AOC
17 Aug - 07 Sep	Norwegian Air Sweden AOC
22 Aug - 07 Sep	Norwegian
17 Aug - 25 Aug	Norwegian Air Sweden AOC

Also check the deals for one-way flights from Trondheim 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 Trondheim to Riga in August from 164€

Return flights