Cheapest return flights from Seoul to Hanoi in September from $196

Best time to book flights for Seoul (ICN) to Hanoi (HAN) flights at AirHint

AirHint found the following cheapest return flights from Seoul (ICN) to Hanoi (HAN) in September 2025 (see full year).

Return flights

07 Sep - 12 Sep Vietnam Airlines direct
21 Sep - 28 Sep Vietnam Airlines
14 Sep - 16 Sep Vietnam Airlines
22 Sep - 26 Sep Vietnam Airlines
10 Sep - 12 Sep Vietnam Airlines direct
08 Sep - 15 Sep Vietnam Airlines
07 Sep - 13 Sep Vietnam Airlines direct
09 Sep - 14 Sep Vietnam Airlines direct
12 Sep - 26 Sep Vietnam Airlines
10 Sep - 17 Sep Vietnam Airlines direct
28 Sep - 04 Oct Jeju Air direct
23 Sep - 02 Oct Jeju Air direct
27 Sep - 03 Oct Jeju Air direct
22 Sep - 01 Oct Jeju Air direct
27 Sep - 04 Oct Jeju Air direct
29 Sep - 04 Oct Jeju Air direct
28 Sep - 03 Oct Jeju Air direct
29 Sep - 03 Oct Jeju Air direct
27 Sep - 01 Oct Jeju Air direct
24 Sep - 01 Oct Vietnam Airlines direct

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

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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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