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

Return flights

11 Sep - 14 Sep	Peach
20 Sep - 22 Sep	Peach
09 Sep - 13 Sep	United	direct
09 Sep - 12 Sep	United	direct
14 Sep - 20 Sep	United	direct
08 Sep - 13 Sep	United	direct
03 Sep - 06 Sep	United	direct
17 Sep - 20 Sep	United	direct
02 Sep - 06 Sep	United	direct
08 Sep - 12 Sep	United	direct
29 Sep - 02 Oct	United	direct
24 Sep - 01 Oct	United	direct
29 Sep - 06 Oct	United	direct
28 Sep - 19 Oct	Jin Air
28 Sep - 17 Oct	Jin Air
29 Sep - 19 Oct	Jin Air
29 Sep - 20 Oct	Jin Air
29 Sep - 17 Oct	Jin Air

Also check the deals for one-way flights from Osaka 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 Osaka to Agana in September from 213€

Return flights