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

Return flights

12 Dec - 15 Dec	VietJet Air
12 Dec - 13 Dec	Thai AirAsia
24 Dec - 11 Jan	Thai AirAsia
27 Dec - 11 Jan	Thai AirAsia
02 Dec - 13 Dec	Thai AirAsia
12 Dec - 02 Jan	Thai AirAsia
12 Dec - 01 Jan	Thai AirAsia
27 Dec - 15 Jan	Thai AirAsia
02 Dec - 05 Dec	Thai AirAsia
09 Dec - 13 Dec	Thai AirAsia
02 Dec - 11 Dec	Thai AirAsia
02 Dec - 15 Dec	Thai AirAsia
13 Dec - 15 Dec	Thai AirAsia
29 Dec - 11 Jan	Thai AirAsia
17 Dec - 02 Jan	Thai AirAsia
17 Dec - 01 Jan	Thai AirAsia
17 Dec - 04 Jan	Thai AirAsia
29 Dec - 19 Jan	Thai AirAsia
12 Dec - 25 Dec	Thai AirAsia
09 Dec - 11 Dec	Thai AirAsia

Also check the deals for one-way flights from Hanoi to Kaohsiung 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 Hanoi to Kaohsiung in December from $232

Return flights