Cheapest return flights from Hanoi to Seoul in September from $157

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

Return flights

07 Sep - 11 Sep VietJet Air direct
07 Sep - 12 Sep VietJet Air direct
05 Sep - 16 Sep VietJet Air
05 Sep - 05 Sep VietJet Air
17 Sep - 21 Sep Shandong Airlines
25 Sep - 12 Oct VietJet Air
05 Sep - 06 Sep VietJet Air
24 Sep - 27 Sep Vietnam Airlines
30 Sep - 08 Oct VietJet Air
30 Sep - 03 Oct Vietnam Airlines
05 Sep - 16 Sep Jeju Air direct
05 Sep - 06 Sep Jeju Air direct
17 Sep - 21 Sep Asiana Airlines direct
30 Sep - 03 Oct Asiana Airlines direct
25 Sep - 12 Oct Asiana Airlines direct
30 Sep - 08 Oct Asiana Airlines direct

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

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