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

Return flights

23 Sep - 28 Oct	TUI.nl
26 Sep - 11 Oct	TUI.nl
29 Sep - 16 Oct	TUI.nl
29 Sep - 17 Oct	TUI.nl
23 Sep - 24 Oct	TAP
22 Sep - 05 Oct	transavia
29 Sep - 23 Oct	Transavia France
30 Sep - 16 Oct	Ryanair
28 Sep - 21 Oct	TUI.nl
23 Sep - 27 Sep	TUI.nl
29 Sep - 24 Oct	TUI.nl
16 Sep - 20 Sep	TUI.nl
23 Sep - 26 Sep	TUI.nl
22 Sep - 27 Sep	TAP
25 Sep - 28 Sep	Transavia France
17 Sep - 24 Sep	Corendon Dutch Airlines
20 Sep - 27 Sep	TAP
16 Sep - 22 Sep	TUI.nl
19 Sep - 26 Sep	Transavia France
20 Sep - 24 Sep	easyJet

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 1011€

Return flights