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

Return flights

07 Dec - 10 Dec	ANA
16 Dec - 23 Dec	Japan Airlines
09 Dec - 11 Dec	Japan Airlines
16 Dec - 19 Dec	Japan Airlines
24 Dec - 28 Dec	ANA
02 Dec - 04 Dec	Japan Airlines
11 Dec - 18 Dec	Japan Airlines
12 Dec - 16 Dec	Japan Airlines
14 Dec - 16 Dec	Japan Airlines
04 Dec - 06 Dec	Japan Airlines
23 Dec - 05 Jan	ANA
30 Dec - 02 Jan	Japan Airlines
28 Dec - 02 Jan	Japan Airlines
28 Dec - 03 Jan	Japan Airlines
27 Dec - 03 Jan	Japan Airlines
27 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 493€

Return flights