AirHint found the following cheapest return flights from Riyadh (RUH) to Ho Chi Minh City (SGN) in September 2025 (see full year).

Return flights

18 Sep - 30 Sep	Air India
18 Sep - 29 Sep	Air India
18 Sep - 23 Sep	Air India
06 Sep - 15 Sep	flyadeal
17 Sep - 11 Oct	IndiGo
02 Sep - 09 Sep	Flynas
18 Sep - 11 Oct	Air India
17 Sep - 10 Oct	IndiGo
26 Sep - 03 Oct	Flynas
05 Sep - 19 Sep	IndiGo
25 Sep - 02 Oct	Air India Express
18 Sep - 10 Oct	IndiGo
05 Sep - 12 Sep	IndiGo
01 Sep - 08 Sep	Air India Express
25 Sep - 10 Oct	Flynas
04 Sep - 13 Sep	Flynas

Also check the deals for one-way flights from Riyadh to Ho Chi Minh City 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 Ho Chi Minh City in September from 429€

Return flights