Cheapest return flights from Seoul to Agana in October from $260

AirHint found the following cheapest return flights from Seoul (GMP) to Agana (GUM) in October 2025 (see full year).

Return flights

31 Oct - 04 Nov Eastar Jet
31 Oct - 02 Nov Korean Air
30 Oct - 02 Nov Korean Air
29 Oct - 02 Nov Air Busan
25 Oct - 29 Oct Korean Air
27 Oct - 31 Oct Korean Air
25 Oct - 30 Oct Korean Air
26 Oct - 30 Oct Korean Air
25 Oct - 28 Oct Korean Air
25 Oct - 27 Oct Korean Air
28 Oct - 30 Oct Korean Air
28 Oct - 31 Oct Korean Air
26 Oct - 29 Oct Korean Air
31 Oct - 07 Nov Korean Air
30 Oct - 05 Nov Korean Air
28 Oct - 04 Nov Korean Air
25 Oct - 15 Nov Korean Air
29 Oct - 01 Nov Korean Air
30 Oct - 04 Nov Korean Air

Also check the deals for one-way flights from Seoul to Agana in October.

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