Cheapest return flights from Chicago to Buenos Aires in September from 732€

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

Return flights

08 Sep - 15 Sep Copa
05 Sep - 12 Sep Spirit Airlines

Also check the deals for one-way flights from Chicago to Buenos Aires in September.

Skyscanner

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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