AirHint found the following cheapest return flights from Seoul (ICN) to Hanoi (HAN) in December 2026 (see full year).

Return flights

04 Dec - 08 Dec	Scoot
11 Dec - 13 Dec	HK Express
03 Dec - 11 Dec	Scoot
07 Dec - 14 Dec	Scoot
10 Dec - 13 Dec	Scoot
04 Dec - 06 Dec	Scoot
04 Dec - 14 Dec	Scoot
02 Dec - 06 Dec	Scoot
09 Dec - 13 Dec	Scoot
11 Dec - 25 Dec	HK Express
29 Dec - 11 Jan	VietJet Air
17 Dec - 06 Jan	VietJet Air
22 Dec - 05 Jan	VietJet Air
21 Dec - 06 Jan	VietJet Air
17 Dec - 06 Jan	Asiana Airlines	direct
31 Dec - 04 Jan	VietJet Air
29 Dec - 04 Jan	VietJet Air
30 Dec - 04 Jan	VietJet Air
18 Dec - 04 Jan	VietJet Air
28 Dec - 04 Jan	VietJet Air

Also check the deals for one-way flights from Seoul 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.

Book a cheap hotel in Hanoi

Cheap car rent in Hanoi

Cheapest return flights from Seoul to Hanoi in December from $257

Return flights