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

Return flights

31 Dec - 07 Jan	Korean Air
31 Dec - 02 Jan	Korean Air
30 Dec - 31 Dec	Korean Air
27 Dec - 31 Dec	T'way Air	direct
27 Dec - 29 Dec	United	direct
27 Dec - 04 Jan	T'way Air	direct
27 Dec - 02 Jan	Korean Air
31 Dec - 03 Jan	Korean Air
28 Dec - 30 Dec	T'way Air	direct
28 Dec - 05 Jan	T'way Air	direct
27 Dec - 01 Jan	T'way Air	direct
28 Dec - 02 Jan	Korean Air
28 Dec - 03 Jan	Korean Air
27 Dec - 30 Dec	United	direct
29 Dec - 31 Dec	Philippine Airlines
28 Dec - 31 Dec	Philippine Airlines
28 Dec - 01 Jan	Philippine Airlines
29 Dec - 30 Dec	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 544€

Return flights