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

Return flights

21 Sep - 12 Oct	Qatar Airways
11 Sep - 23 Sep	Qatar Airways
19 Sep - 21 Sep	Qatar Airways
15 Sep - 20 Sep	Qatar Airways
03 Sep - 16 Sep	Qatar Airways
21 Sep - 11 Oct	KLM
29 Sep - 17 Oct	KLM
01 Sep - 01 Oct	KLM
08 Sep - 19 Sep	KLM
05 Sep - 14 Sep	KLM
18 Sep - 22 Sep	KLM
15 Sep - 28 Sep	KLM
08 Sep - 14 Sep	KLM
09 Sep - 13 Sep	KLM

Also check the deals for one-way flights from Istanbul 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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from Istanbul to Buenos Aires in September from $1469

Return flights