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

Return flights

25 Sep - 06 Oct	China Southern
28 Sep - 05 Oct	Air India
27 Sep - 04 Oct	Flynas
21 Sep - 29 Sep	SalamAir
23 Sep - 13 Oct	Flynas
23 Sep - 29 Sep	Flynas
22 Sep - 30 Sep	Flynas
22 Sep - 02 Oct	Air India
25 Sep - 02 Oct	China Southern
21 Sep - 04 Oct	SalamAir
24 Sep - 01 Oct	IndiGo
23 Sep - 03 Oct	Etihad Airways
25 Sep - 09 Oct	flyadeal
21 Sep - 27 Sep	SalamAir
23 Sep - 27 Sep	Etihad Airways
22 Sep - 28 Sep	Flynas
22 Sep - 26 Sep	Flynas
22 Sep - 27 Sep	Flynas
25 Sep - 27 Sep	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.

Book a cheap hotel in Hanoi

Cheap car rent in Hanoi

Cheapest return flights from Riyadh to Hanoi in September from 417€

Return flights