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

Return flights

01 Dec - 08 Dec	VietJet Air	direct
15 Dec - 19 Dec	VietJet Air	direct
04 Dec - 07 Dec	HK Express
09 Dec - 14 Dec	HK Express
11 Dec - 14 Dec	HK Express
09 Dec - 13 Dec	HK Express
02 Dec - 06 Dec	HK Express
15 Dec - 25 Dec	HK Express
04 Dec - 09 Dec	HK Express
10 Dec - 14 Dec	HK Express
14 Dec - 13 Jan	China Southern
15 Dec - 13 Jan	China Southern
09 Dec - 16 Jan	HK Express
08 Dec - 15 Jan	VietJet Air
19 Dec - 16 Jan	Thai VietJet Air
03 Dec - 08 Jan	HK Express
24 Dec - 09 Jan	Thai VietJet Air
13 Dec - 05 Jan	VietJet Air
20 Dec - 11 Jan	Air China
21 Dec - 11 Jan	Air China

Also check the deals for one-way flights from Osaka to Hanoi in December.

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 Osaka to Hanoi in December from $218

Return flights