AirHint found the following cheapest return flights from Cheju (CJU) to Hanoi (HAN) in January 2026 (see full year).

Return flights

07 Jan - 10 Jan	Jin Air
11 Jan - 15 Jan	Jin Air
28 Jan - 31 Jan	Jeju Air
16 Jan - 19 Jan	HK Express
13 Jan - 18 Jan	HK Express
22 Jan - 28 Jan	HK Express
16 Jan - 22 Jan	HK Express
14 Jan - 18 Jan	HK Express
24 Jan - 27 Jan	HK Express
23 Jan - 27 Jan	HK Express
29 Jan - 01 Feb	HK Express
20 Jan - 21 Feb	HK Express

Also check the deals for one-way flights from Cheju to Hanoi in January.

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 Cheju to Hanoi in January from $222

Return flights