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

Return flights

26 Aug - 02 Sep	Thai Lion Air
31 Aug - 07 Sep	Thai Lion Air
26 Aug - 04 Sep	Thai VietJet Air
30 Aug - 07 Sep	Thai VietJet Air
25 Aug - 01 Sep	Thai VietJet Air
25 Aug - 02 Sep	Hainan Airlines
20 Aug - 27 Aug	Thai AirAsia
19 Aug - 26 Aug	VietJet Air
17 Aug - 26 Aug	VietJet Air
21 Aug - 31 Aug	Hainan Airlines
21 Aug - 26 Aug	Hainan Airlines
21 Aug - 28 Aug	Cathay Pacific
19 Aug - 29 Aug	Batik Air Malaysia
19 Aug - 26 Aug	Saudia	direct
17 Aug - 26 Aug	Saudia	direct

Also check the deals for one-way flights from Bangkok to Riyadh 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 Bangkok to Riyadh in August from 418€

Return flights