Cheapest return flights from Seoul to Hanoi in January from $178

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

Return flights

21 Jan - 28 Jan Shandong Airlines
30 Jan - 03 Feb Shandong Airlines
24 Jan - 30 Jan Shandong Airlines
22 Jan - 27 Jan Shandong Airlines
23 Jan - 28 Jan Shandong Airlines
23 Jan - 29 Jan Shandong Airlines
21 Jan - 25 Jan Shandong Airlines
30 Jan - 02 Feb Shandong Airlines
24 Jan - 28 Jan Shandong Airlines
25 Jan - 27 Jan China Eastern
17 Jan - 28 Jan China Eastern
29 Jan - 02 Feb Air China
21 Jan - 27 Jan Shandong Airlines
19 Jan - 06 Feb VietJet Air
30 Jan - 11 Feb Thai VietJet Air
31 Jan - 09 Feb Jeju Air
27 Jan - 08 Feb VietJet Air
29 Jan - 10 Feb Air China
29 Jan - 06 Feb Air China
27 Jan - 06 Feb VietJet Air

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

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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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