AirHint found the following cheapest return flights from Fukuoka (FUK) to Agana (GUM) in August 2025 (see full year).

Return flights

24 Aug - 28 Aug	Jeju Air
22 Aug - 25 Aug	Jeju Air
16 Aug - 19 Aug	Jeju Air
23 Aug - 26 Aug	Jeju Air
23 Aug - 28 Aug	Jeju Air
25 Aug - 30 Aug	Jeju Air
19 Aug - 21 Aug	Jeju Air
18 Aug - 21 Aug	Jeju Air
24 Aug - 29 Aug	Jeju Air
23 Aug - 29 Aug	Jeju Air
30 Aug - 02 Sep	Jeju Air
24 Aug - 01 Sep	Jin Air
24 Aug - 02 Sep	Jin Air
24 Aug - 04 Sep	Jin Air
24 Aug - 09 Sep	Jin Air
24 Aug - 05 Sep	Jin Air
24 Aug - 07 Sep	Jin Air
24 Aug - 14 Sep	Jin Air
24 Aug - 03 Sep	Jin Air
24 Aug - 10 Sep	Jin Air

Also check the deals for one-way flights from Fukuoka to Agana in August.

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 Fukuoka to Agana in August from $310

Return flights