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

Return flights

22 Sep - 30 Sep	Volaris
28 Sep - 05 Oct	Volaris
09 Sep - 22 Sep	Volaris
10 Sep - 16 Sep	Copa
25 Sep - 05 Oct	Viva
11 Sep - 18 Sep	Volaris
10 Sep - 17 Sep	Aeromexico
21 Sep - 27 Sep	Volaris
13 Sep - 20 Sep	Viva
13 Sep - 03 Oct	Viva
11 Sep - 16 Sep	Volaris
12 Sep - 26 Sep	Volaris
14 Sep - 17 Sep	Viva

Also check the deals for one-way flights from Guadalajara 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 Guadalajara to Buenos Aires in September from 691€

Return flights