Cheapest return GMP–CXR flights, September

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

Return flights

19 Sep - 24 Sep Korean Air
07 Sep - 11 Sep Korean Air
19 Sep - 23 Sep Korean Air
14 Sep - 18 Sep Korean Air
12 Sep - 16 Sep Korean Air
28 Sep - 14 Oct Korean Air
11 Sep - 16 Sep Korean Air
21 Sep - 30 Sep Korean Air
04 Sep - 09 Sep Korean Air
04 Sep - 07 Sep Korean Air
02 Sep - 05 Sep Korean Air
26 Sep - 05 Oct Korean Air
25 Sep - 05 Oct Korean Air

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

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