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

Return flights

24 Sep - 28 Oct	LATAM Airlines Group
08 Sep - 15 Sep	Avianca
30 Sep - 06 Oct	LATAM Airlines Group
02 Sep - 15 Sep	Avianca
27 Sep - 14 Oct	LATAM Airlines Group
30 Sep - 21 Oct	American Airlines
24 Sep - 16 Oct	American Airlines
22 Sep - 08 Oct	American Airlines
26 Sep - 18 Oct	LATAM Airlines Group
27 Sep - 21 Oct	Avianca
28 Sep - 16 Oct	Avianca
30 Sep - 03 Oct	GOL Linhas Aéreas
07 Sep - 13 Sep	Avianca
03 Sep - 15 Sep	Avianca
03 Sep - 10 Sep	Avianca
07 Sep - 14 Sep	Avianca
06 Sep - 13 Sep	Avianca
08 Sep - 24 Sep	Avianca
01 Sep - 15 Sep	Avianca
13 Sep - 27 Sep	Avianca

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Buenos Aires to Barcelona in September from 947€

Return flights