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
09 Sep - 13 Sep Air China
10 Sep - 15 Sep Air China
18 Sep - 21 Sep Air China
10 Sep - 14 Sep Air China
19 Sep - 26 Sep Korean Air
07 Sep - 14 Sep Air China
22 Sep - 06 Oct EVA Air
24 Sep - 03 Oct Jeju Air
19 Sep - 27 Sep Korean Air
18 Sep - 27 Sep Korean Air
30 Sep - 05 Oct EVA Air
17 Sep - 20 Sep Jeju Air
25 Sep - 03 Oct Jeju Air
23 Sep - 02 Oct EVA 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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