AirHint found the following cheapest return flights from Amsterdam (AMS) to Buenos Aires (AEP) in September 2025 (see full year).

Return flights

13 Sep - 27 Sep	TAP
25 Sep - 17 Oct	TAP
17 Sep - 30 Sep	Air France
01 Sep - 10 Sep	TAP
05 Sep - 26 Sep	Air France
01 Sep - 23 Sep	Air France
15 Sep - 06 Oct	SWISS
15 Sep - 02 Oct	SWISS
05 Sep - 20 Sep	Air France
01 Sep - 21 Sep	Air France
01 Sep - 14 Sep	Air Europa
19 Sep - 10 Oct	Air Canada
23 Sep - 26 Sep	transavia
15 Sep - 28 Sep	Air Canada
25 Sep - 06 Oct	SWISS
25 Sep - 11 Oct	Air Canada
21 Sep - 05 Oct	LATAM Airlines Group
28 Sep - 31 Oct	TAP

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to Buenos Aires in September from 907€

Return flights