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

Return flights

12 Sep - 14 Sep	United	direct
05 Sep - 08 Sep	United	direct
30 Sep - 09 Oct	United	direct
17 Sep - 25 Sep	Jin Air
17 Sep - 24 Sep	Jin Air
17 Sep - 22 Sep	Jin Air
17 Sep - 27 Sep	Jin Air
17 Sep - 18 Sep	Jin Air
17 Sep - 23 Sep	Jin Air
17 Sep - 26 Sep	Jin Air
17 Sep - 20 Sep	Jin Air
27 Sep - 18 Oct	Jin Air
27 Sep - 15 Oct	Jin Air
27 Sep - 16 Oct	Jin Air
27 Sep - 17 Oct	Jin Air
26 Sep - 15 Oct	Jin Air
26 Sep - 16 Oct	Jin Air
30 Sep - 20 Oct	Jin Air
30 Sep - 18 Oct	Jin Air
30 Sep - 15 Oct	Jin Air

Also check the deals for one-way flights from Agana to Osaka 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 Agana to Osaka in September from $335

Return flights