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

Return flights

23 Sep - 23 Oct	Avianca
27 Sep - 23 Oct	Avianca
30 Sep - 23 Oct	Avianca
19 Sep - 23 Sep	Avianca
29 Sep - 23 Oct	Avianca
28 Sep - 23 Oct	Sky Airline
23 Sep - 30 Sep	Avianca
23 Sep - 27 Oct	Avianca
20 Sep - 23 Sep	Avianca
27 Sep - 27 Oct	Avianca
26 Sep - 27 Oct	Avianca
26 Sep - 08 Oct	Avianca
27 Sep - 15 Oct	Avianca
16 Sep - 23 Sep	Avianca
19 Sep - 26 Sep	Avianca
23 Sep - 27 Sep	Avianca
21 Sep - 22 Sep	Avianca
15 Sep - 24 Sep	Aeromexico
18 Sep - 25 Sep	Sky Airline
24 Sep - 28 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.

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Cheapest return flights from Buenos Aires to Barcelona in September from 984€

Return flights