AirHint found the following cheapest return flights from Riga (RIX) to Bangkok (BKK) in December 2025 (see full year).

Return flights

02 Dec - 16 Dec	airBaltic
01 Dec - 08 Dec	Ryanair
02 Dec - 23 Dec	Finnair
04 Dec - 11 Dec	Ryanair
01 Dec - 15 Dec	Finnair
01 Dec - 22 Dec	Finnair
08 Dec - 21 Dec	Lufthansa
06 Dec - 16 Dec	Finnair
03 Dec - 16 Dec	Finnair
04 Dec - 15 Dec	Finnair
10 Dec - 29 Jan	Air France
09 Dec - 13 Jan	Finnair
30 Dec - 16 Jan	Finnair
30 Dec - 29 Jan	Finnair
19 Dec - 03 Jan	airBaltic
18 Dec - 18 Jan	Ryanair
26 Dec - 10 Jan	airBaltic
27 Dec - 11 Jan	airBaltic
27 Dec - 10 Jan	airBaltic
10 Dec - 12 Jan	Finnair

Also check the deals for one-way flights from Riga to Bangkok in December.

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 Riga to Bangkok in December from $670

Return flights