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

Return flights

07 Dec - 20 Dec	Flynas
07 Dec - 21 Dec	Flynas
06 Dec - 14 Dec	Akasa Air
06 Dec - 21 Dec	Akasa Air
05 Dec - 13 Dec	Flynas
04 Dec - 14 Dec	Flynas
05 Dec - 20 Dec	Flynas
06 Dec - 18 Dec	Akasa Air
02 Dec - 13 Dec	Flynas
06 Dec - 16 Dec	Akasa Air
29 Dec - 12 Jan	IndiGo
23 Dec - 13 Jan	Thai AirAsia X	direct
26 Dec - 01 Jan	IndiGo
25 Dec - 17 Jan	Jazeera Airways
27 Dec - 02 Jan	flyadeal
25 Dec - 03 Jan	flyadeal
23 Dec - 05 Jan	Thai AirAsia X
20 Dec - 02 Jan	flyadeal
23 Dec - 06 Jan	Thai AirAsia X
26 Dec - 10 Jan	Saudia

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 $446

Return flights