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

Return flights

29 Sep - 16 Oct	LATAM Airlines Group
22 Sep - 13 Oct	JetSmart
20 Sep - 14 Oct	SWISS
30 Sep - 14 Oct	LATAM Airlines Group
27 Sep - 14 Oct	LATAM Airlines Group
27 Sep - 12 Oct	LATAM Airlines Group
30 Sep - 28 Oct	LATAM Airlines Group
29 Sep - 15 Oct	LATAM Airlines Group
24 Sep - 09 Oct	SWISS
29 Sep - 22 Oct	LATAM Airlines Group
18 Sep - 30 Sep	Avianca
08 Sep - 22 Sep	American Airlines
12 Sep - 30 Sep	Arajet
03 Sep - 18 Sep	LATAM Airlines Group
03 Sep - 14 Sep	LATAM Airlines Group
03 Sep - 17 Sep	LATAM Airlines Group
11 Sep - 23 Sep	LATAM Airlines Group
02 Sep - 11 Sep	LATAM Airlines Group
16 Sep - 26 Sep	Ethiopian Airlines
10 Sep - 21 Sep	Air Canada

Also check the deals for one-way flights from Buenos Aires to Barcelona 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 Buenos Aires to Barcelona in September from 903€

Return flights