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

Return flights

13 Sep - 25 Sep	Gulf Air
07 Sep - 23 Sep	IndiGo
09 Sep - 23 Sep	SalamAir
14 Sep - 27 Sep	Air India
02 Sep - 23 Sep	SalamAir
19 Sep - 27 Sep	Air India
13 Sep - 23 Sep	Air India
10 Sep - 25 Sep	IndiGo
21 Sep - 28 Sep	Air India
06 Sep - 17 Sep	China Southern
17 Sep - 01 Oct	Air India
28 Sep - 09 Oct	IndiGo
24 Sep - 10 Oct	IndiGo
19 Sep - 03 Oct	Flynas
25 Sep - 13 Oct	Air India
19 Sep - 04 Oct	Air India
19 Sep - 06 Oct	Air India
28 Sep - 05 Oct	SalamAir
26 Sep - 03 Oct	Flynas

Also check the deals for one-way flights from Riyadh to Hanoi in September.

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 September from 400€

Return flights