Cheapest return flights from Seoul to Hanoi in September from $202

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

26 Sep - 29 Sep Vietnam Airlines
08 Sep - 15 Sep Vietnam Airlines
17 Sep - 21 Sep Vietnam Airlines
17 Sep - 22 Sep Vietnam Airlines
16 Sep - 21 Sep Vietnam Airlines
18 Sep - 23 Sep Vietnam Airlines
10 Sep - 16 Sep Vietnam Airlines
11 Sep - 15 Sep Vietnam Airlines
22 Sep - 28 Sep Vietnam Airlines
26 Sep - 28 Sep Vietnam Airlines
26 Sep - 03 Oct Vietnam Airlines direct
28 Sep - 03 Oct Vietnam Airlines direct
23 Sep - 14 Oct Asiana Airlines direct
28 Sep - 05 Oct Asiana Airlines direct
28 Sep - 06 Oct Korean Air direct
27 Sep - 11 Oct Korean Air direct
28 Sep - 01 Oct Cathay Pacific
30 Sep - 07 Oct Vietnam Airlines direct
28 Sep - 07 Oct Vietnam Airlines direct
30 Sep - 08 Oct Vietnam Airlines direct

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

Skyscanner

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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