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

Return flights

23 Sep - 15 Oct	Ryanair
09 Sep - 30 Sep	Iberia
08 Sep - 30 Sep	Air Europa
02 Sep - 24 Sep	Air Europa
02 Sep - 26 Sep	Air Europa
09 Sep - 27 Sep	Iberia
02 Sep - 27 Sep	Air Europa
08 Sep - 23 Sep	Air Europa
02 Sep - 25 Sep	Air Europa
02 Sep - 22 Sep	Air Europa
02 Sep - 23 Sep	Air Europa
25 Sep - 10 Oct	Ryanair
20 Sep - 20 Oct	Vueling Airlines

Also check the deals for one-way flights from Alicante 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 Alicante to Buenos Aires in September from 943€

Return flights