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

Return flights

15 Sep - 29 Sep	LATAM Airlines Group
06 Sep - 15 Sep	LATAM Airlines Group
06 Sep - 18 Sep	LATAM Airlines Group
19 Sep - 28 Sep	LATAM Airlines Group
10 Sep - 16 Sep	Copa
07 Sep - 11 Sep	Volaris
07 Sep - 21 Sep	LATAM Airlines Group
05 Sep - 12 Sep	Aeromexico
28 Sep - 01 Oct	LATAM Airlines Group

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 $741

Return flights