Cheapest return flights from Chicago to Buenos Aires in May from $1119

AirHint found the following cheapest return flights from Chicago (MDW) to Buenos Aires (EZE) in May 2026 (see full year).

Return flights

23 May - 31 May LATAM Airlines Group
21 May - 04 Jun LATAM Airlines Group
17 May - 23 May Delta

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

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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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