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

Return flights

24 Sep - 11 Oct	Scoot
24 Sep - 13 Oct	Scoot
24 Sep - 04 Oct	Scoot
24 Sep - 27 Sep	Scoot
24 Sep - 24 Oct	Scoot
22 Sep - 27 Sep	Aegean Airlines
15 Sep - 25 Sep	Air Arabia
21 Sep - 16 Oct	Scoot
16 Sep - 23 Sep	Air Arabia
27 Sep - 29 Sep	Air Arabia
23 Sep - 11 Oct	Etihad Airways
15 Sep - 30 Sep	Gulf Air
07 Sep - 18 Sep	Scoot
19 Sep - 26 Sep	Air Arabia
14 Sep - 17 Sep	Scoot
23 Sep - 13 Oct	Gulf Air
22 Sep - 28 Sep	Air Arabia
18 Sep - 13 Oct	Gulf Air
18 Sep - 09 Oct	Air Arabia
25 Sep - 16 Oct	Gulf Air

Also check the deals for one-way flights from Athens 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 Athens to Hanoi in September from 456€

Return flights