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

Return flights

07 Sep - 11 Sep	Jeju Air
10 Sep - 13 Sep	Jeju Air
14 Sep - 16 Sep	Jeju Air
10 Sep - 12 Sep	Jeju Air
16 Sep - 19 Sep	Jeju Air
09 Sep - 11 Sep	Jeju Air
09 Sep - 12 Sep	Air China
23 Sep - 28 Sep	Jeju Air
21 Sep - 25 Sep	Jeju Air
25 Sep - 28 Sep	Jeju Air
30 Sep - 07 Oct	China Airlines
07 Sep - 07 Oct	China Airlines

Also check the deals for one-way flights from Hiroshima 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 Hiroshima to Hanoi in September from 262€

Return flights