Cheapest return flights from Seoul to Hanoi in September from $338

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

Return flights

20 Sep - 23 Sep Korean Air
09 Sep - 13 Sep Jeju Air
12 Sep - 15 Sep Jeju Air
11 Sep - 14 Sep Jeju Air
03 Sep - 06 Sep Jeju Air
12 Sep - 20 Sep Air China
28 Sep - 01 Oct Korean Air
17 Sep - 20 Sep Air China
30 Sep - 05 Oct EVA Air
19 Sep - 05 Oct EVA Air
30 Sep - 07 Oct Air China
30 Sep - 03 Oct Air China
18 Sep - 04 Oct Air China
26 Sep - 04 Oct Air China
23 Sep - 28 Sep EVA Air
30 Sep - 04 Oct Air China
10 Sep - 16 Sep Air China
24 Sep - 27 Sep China Eastern
23 Sep - 11 Oct Air China
20 Sep - 03 Oct Air China

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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