Cheapest return flights from Seoul to Hanoi in September from 378€

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

Return flights

10 Sep - 13 Sep Jeju Air
12 Sep - 15 Sep Jeju Air
11 Sep - 15 Sep Air China
12 Sep - 16 Sep Air China
08 Sep - 12 Sep Air China
10 Sep - 14 Sep Air China
17 Sep - 21 Sep Air China
15 Sep - 21 Sep Air China
16 Sep - 29 Sep EVA Air
22 Sep - 06 Oct EVA Air
18 Sep - 27 Sep Korean Air
25 Sep - 03 Oct Jeju Air

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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