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

Return flights

21 Dec - 26 Dec	United	direct
07 Dec - 10 Dec	United	direct
22 Dec - 24 Dec	United	direct
13 Dec - 16 Dec	United	direct
03 Dec - 10 Dec	United	direct
03 Dec - 05 Dec	United	direct
09 Dec - 12 Dec	United	direct
16 Dec - 20 Dec	United	direct
17 Dec - 20 Dec	United	direct
21 Dec - 25 Dec	United	direct
25 Dec - 06 Jan	Korean Air
24 Dec - 03 Jan	Korean Air
29 Dec - 06 Jan	Korean Air
30 Dec - 06 Jan	Korean Air
30 Dec - 08 Jan	Korean Air
31 Dec - 02 Jan	Korean Air
31 Dec - 05 Jan	Korean Air
29 Dec - 04 Jan	Korean Air
30 Dec - 01 Jan	Korean Air
30 Dec - 02 Jan	Korean Air

Also check the deals for one-way flights from Tokyo 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 Tokyo to Agana in December from $289

Return flights