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

Return flights

18 Dec - 21 Dec	Peach
08 Dec - 11 Dec	Peach
08 Dec - 15 Dec	Peach
08 Dec - 10 Dec	Peach
09 Dec - 14 Jan	Peach
02 Dec - 09 Dec	Peach
02 Dec - 06 Dec	Peach
02 Dec - 15 Dec	Peach
01 Dec - 04 Dec	Peach
12 Dec - 14 Dec	Peach
10 Dec - 11 Jan	Peach
23 Dec - 25 Dec	Thai VietJet Air
10 Dec - 07 Jan	Peach
25 Dec - 15 Jan	Thai VietJet Air
20 Dec - 12 Jan	Air China
21 Dec - 18 Jan	VietJet Air
15 Dec - 04 Jan	Peach
16 Dec - 04 Jan	Peach
18 Dec - 04 Jan	Peach
23 Dec - 10 Jan	Peach

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 $248

Return flights