AirHint found the following cheapest return flights from Kobe (UKB) to Agana (GUM) in September 2025 (see full year).

Return flights

23 Sep - 26 Sep	Korean Air
23 Sep - 25 Sep	Korean Air
22 Sep - 24 Sep	Korean Air
27 Sep - 28 Sep	Korean Air
25 Sep - 01 Oct	Korean Air
11 Sep - 16 Sep	Korean Air
08 Sep - 10 Sep	Korean Air
06 Sep - 09 Sep	Korean Air
17 Sep - 20 Sep	Korean Air
12 Sep - 15 Sep	Korean Air
12 Sep - 19 Sep	Korean Air
29 Sep - 06 Oct	Korean Air
28 Sep - 02 Oct	Korean Air

Also check the deals for one-way flights from Kobe to Agana 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 Kobe to Agana in September from 395€

Return flights