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

Return flights

30 Dec - 28 Jan	Air Arabia
27 Dec - 22 Jan	Cathay Pacific
31 Dec - 28 Jan	SriLankan Airlines
28 Dec - 31 Dec	IndiGo
27 Dec - 01 Jan	Cathay Pacific
31 Dec - 09 Jan	IndiGo
30 Dec - 17 Jan	IndiGo
31 Dec - 06 Jan	IndiGo
30 Dec - 09 Jan	SriLankan Airlines
31 Dec - 14 Jan	SriLankan Airlines
31 Dec - 12 Jan	SriLankan Airlines
27 Dec - 30 Dec	Flynas
27 Dec - 30 Dec	Thai AirAsia X	direct
29 Dec - 29 Dec	Emirates
30 Dec - 30 Dec	Emirates

Also check the deals for one-way flights from Riyadh 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 Riyadh to Bangkok in December from 227€

Return flights