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

Return flights

20 Dec - 24 Dec	United
21 Dec - 24 Dec	United
05 Dec - 12 Dec	United
06 Dec - 12 Dec	United
08 Dec - 10 Dec	United
19 Dec - 24 Dec	United
14 Dec - 17 Dec	United
09 Dec - 12 Dec	United
22 Dec - 26 Dec	United
06 Dec - 10 Dec	United
10 Dec - 01 Jan	Philippine Airlines
29 Dec - 01 Jan	Philippine Airlines
24 Dec - 01 Jan	Philippine Airlines
19 Dec - 08 Jan	Jin Air
20 Dec - 08 Jan	Jin Air
18 Dec - 08 Jan	Jin Air
25 Dec - 04 Jan	Philippine Airlines
31 Dec - 07 Jan	T'way Air
30 Dec - 02 Jan	T'way Air
10 Dec - 01 Jan	United	direct

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 $245

Return flights