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

Return flights

07 Dec - 09 Dec	ANA
07 Dec - 10 Dec	ANA
13 Dec - 16 Dec	Japan Airlines
10 Dec - 17 Dec	Japan Airlines
08 Dec - 12 Dec	Japan Airlines
23 Dec - 25 Dec	ANA
23 Dec - 28 Dec	ANA
14 Dec - 17 Dec	Japan Airlines
21 Dec - 22 Dec	Japan Airlines
18 Dec - 22 Dec	Japan Airlines
26 Dec - 04 Jan	ANA
30 Dec - 01 Jan	Japan Airlines
27 Dec - 01 Jan	Japan Airlines
29 Dec - 01 Jan	Japan Airlines
30 Dec - 04 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 555€

Return flights