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

Return flights

03 Dec - 11 Dec	airBaltic
02 Dec - 07 Dec	airBaltic
03 Dec - 23 Dec	airBaltic
02 Dec - 06 Dec	airBaltic
03 Dec - 13 Dec	airBaltic
02 Dec - 18 Dec	airBaltic
01 Dec - 20 Dec	Ryanair
04 Dec - 15 Dec	Ryanair
02 Dec - 15 Dec	airBaltic
07 Dec - 15 Dec	Ryanair
06 Dec - 22 Jan	Ryanair
08 Dec - 30 Jan	Ryanair
07 Dec - 13 Jan	Ryanair
30 Dec - 18 Jan	Ryanair
29 Dec - 18 Jan	Ryanair
31 Dec - 14 Jan	airBaltic
30 Dec - 17 Jan	Ryanair
29 Dec - 17 Jan	Ryanair
09 Dec - 31 Jan	Ryanair
30 Dec - 14 Jan	Ryanair

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 $533

Return flights