AirHint found the following cheapest return flights from Seoul (GMP) to Danang (DAD) in September 2025 (see full year).

Return flights

03 Sep - 10 Sep	Jeju Air
04 Sep - 10 Sep	Jin Air
09 Sep - 12 Sep	Air Busan
01 Sep - 04 Sep	T'way Air
11 Sep - 15 Oct	Korean Air
01 Sep - 06 Sep	Jin Air
20 Sep - 25 Sep	Korean Air
12 Sep - 16 Sep	Korean Air
25 Sep - 29 Sep	Korean Air
21 Sep - 30 Sep	Korean Air
01 Sep - 03 Sep	T'way Air
24 Sep - 01 Oct	Jeju Air
26 Sep - 03 Oct	Air Busan
01 Sep - 01 Oct	Jeju Air
27 Sep - 03 Oct	Jeju Air
27 Sep - 02 Oct	Jeju Air
22 Sep - 03 Oct	Korean Air
28 Sep - 01 Oct	Korean Air
29 Sep - 03 Oct	Korean Air
28 Sep - 03 Oct	Korean Air

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

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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Cheapest return flights from Seoul to Danang in September from 163€

Return flights