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

Return flights

30 Sep - 07 Oct	VietJet Air	direct
04 Sep - 11 Sep	VietJet Air
28 Sep - 11 Oct	VietJet Air	direct
26 Sep - 28 Sep	VietJet Air
19 Sep - 22 Sep	HK Express
25 Sep - 28 Sep	VietJet Air
27 Sep - 28 Sep	VietJet Air
02 Sep - 09 Sep	HK Express
18 Sep - 29 Sep	VietJet Air
07 Sep - 11 Sep	VietJet Air
14 Sep - 28 Sep	VietJet Air
02 Sep - 05 Sep	HK Express
26 Sep - 03 Oct	VietJet Air
12 Sep - 03 Oct	Thai AirAsia
12 Sep - 01 Oct	Thai AirAsia
11 Sep - 01 Oct	Thai AirAsia
25 Sep - 08 Oct	Thai AirAsia
25 Sep - 07 Oct	Thai AirAsia
25 Sep - 05 Oct	Thai AirAsia
25 Sep - 11 Oct	Thai AirAsia

Also check the deals for one-way flights from Hanoi to Osaka 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 Hanoi to Osaka in September from 214€

Return flights