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

Return flights

25 Sep - 13 Oct	Ryanair
19 Sep - 28 Sep	TAP
25 Sep - 09 Oct	Ryanair
08 Sep - 21 Sep	Air Europa
23 Sep - 26 Sep	Ryanair
25 Sep - 10 Oct	Ryanair
15 Sep - 25 Sep	Iberia
28 Sep - 10 Oct	Iberia
05 Sep - 15 Sep	Air Europa
12 Sep - 22 Sep	Air Europa
01 Sep - 07 Sep	Air Europa
01 Sep - 11 Sep	Air Europa
01 Sep - 08 Sep	TAP
19 Sep - 04 Oct	SWISS
30 Sep - 11 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 959€

Return flights