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

Return flights

08 Sep - 08 Oct	Air France
08 Sep - 21 Sep	KLM
16 Sep - 21 Sep	Air France
09 Sep - 10 Sep	Air Canada
17 Sep - 22 Oct	KLM
12 Sep - 15 Sep	Air Canada
10 Sep - 18 Sep	Air Canada
18 Sep - 26 Sep	KLM
08 Sep - 16 Sep	KLM
10 Sep - 10 Oct	Emirates
09 Sep - 25 Sep	KLM
15 Sep - 20 Sep	Air France
06 Sep - 10 Sep	KLM
19 Sep - 27 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 1571€

Return flights