AirHint found the following cheapest return flights from Tokyo (HND) to Buenos Aires (EZE) in September 2025 (see full year).

Return flights

19 Sep - 24 Sep	LATAM Airlines Group
04 Sep - 06 Oct	Lufthansa
30 Sep - 16 Oct	Air Canada
01 Sep - 09 Sep	Lufthansa
01 Sep - 08 Sep	KLM
26 Sep - 22 Oct	KLM
16 Sep - 23 Sep	Air France
26 Sep - 23 Oct	KLM
12 Sep - 16 Sep	Air France
18 Sep - 26 Sep	KLM
01 Sep - 14 Sep	KLM
15 Sep - 22 Sep	KLM
08 Sep - 13 Sep	KLM
02 Sep - 09 Sep	Air France
26 Sep - 04 Oct	KLM

Also check the deals for one-way flights from Tokyo to Buenos Aires in September.

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 September from $1976

Return flights