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

Return flights

27 Dec - 20 Jan	SWISS
29 Dec - 12 Jan	ITA Airways
26 Dec - 20 Jan	ITA Airways
26 Dec - 21 Jan	ITA Airways
24 Dec - 31 Dec	Qatar Airways
25 Dec - 05 Jan	Air Canada
25 Dec - 02 Jan	Air Canada
25 Dec - 03 Jan	Air Canada
28 Dec - 21 Jan	ITA Airways
26 Dec - 05 Jan	Air Canada
18 Dec - 05 Jan	Air Canada

Also check the deals for one-way flights from Tokyo to Buenos Aires 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 Buenos Aires in December from $2137

Return flights