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

Return flights

28 Aug - 31 Aug	China Southern
18 Aug - 26 Sep	Etihad Airways
27 Aug - 10 Sep	Etihad Airways
22 Aug - 03 Sep	Etihad Airways
30 Aug - 10 Sep	Etihad Airways
23 Aug - 02 Sep	Etihad Airways
28 Aug - 10 Sep	Air India
26 Aug - 09 Sep	Flynas
26 Aug - 04 Sep	Flynas
28 Aug - 05 Sep	Flynas
28 Aug - 04 Sep	Flynas
19 Aug - 27 Aug	China Southern
21 Aug - 27 Aug	Flynas
21 Aug - 31 Aug	Flynas
18 Aug - 25 Aug	IndiGo
20 Aug - 31 Aug	Air India
16 Aug - 28 Aug	Etihad Airways
15 Aug - 31 Aug	Flynas
15 Aug - 27 Aug	Flynas
16 Aug - 25 Aug	Etihad Airways

Also check the deals for one-way flights from Riyadh to Hanoi 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 Riyadh to Hanoi in August from 403€

Return flights