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

Return flights

08 Dec - 10 Dec	ANA
05 Dec - 09 Dec	ANA
06 Dec - 10 Dec	ANA
15 Dec - 17 Dec	ANA
14 Dec - 17 Dec	ANA
02 Dec - 16 Dec	Japan Airlines
16 Dec - 19 Dec	Japan Airlines
18 Dec - 22 Dec	Japan Airlines
09 Dec - 14 Dec	Japan Airlines
17 Dec - 23 Dec	Japan Airlines
29 Dec - 06 Jan	ANA
31 Dec - 03 Jan	ANA
25 Dec - 05 Jan	ANA
31 Dec - 05 Jan	ANA
26 Dec - 08 Jan	Japan Airlines
26 Dec - 02 Jan	ANA
29 Dec - 05 Jan	ANA
28 Dec - 01 Jan	Japan Airlines
30 Dec - 02 Jan	Japan Airlines
28 Dec - 02 Jan	Japan Airlines

Also check the deals for one-way flights from Osaka to Agana in December.

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 December from $501

Return flights