Cheapest return flights from Seoul to Hanoi in September from 415€

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

Return flights

01 Sep - 09 Sep Asiana Airlines
14 Sep - 17 Sep Jeju Air
13 Sep - 17 Sep Air China
07 Sep - 15 Sep Jeju Air
12 Sep - 14 Sep Jeju Air
09 Sep - 13 Sep Jeju Air
01 Sep - 13 Sep Jeju Air
12 Sep - 16 Sep Jeju Air
18 Sep - 23 Sep Air China
07 Sep - 13 Sep Jeju Air
29 Sep - 02 Oct Jeju Air
30 Sep - 07 Oct Air China
28 Sep - 05 Oct Air China
28 Sep - 09 Oct Korean Air
30 Sep - 05 Oct Jeju Air
19 Sep - 04 Oct Jeju Air
28 Sep - 07 Oct Jeju Air
29 Sep - 08 Oct Jeju Air

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

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