Cheapest return flights from Chicago (MDW) to Buenos Aires (EZE), October

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
12 Oct 16 Oct Frontier Airlines
08 Oct 15 Oct Frontier Airlines
31 Oct 05 Nov Frontier Airlines
09 Oct 16 Oct Delta
22 Oct 05 Nov LATAM Airlines Group
05 Oct 20 Oct LATAM Airlines Group
01 Oct 11 Oct Frontier Airlines
08 Oct 28 Oct LATAM Airlines Group
01 Oct 21 Oct LATAM Airlines Group
15 Oct 30 Oct Delta
05 Oct 17 Oct Delta
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deals for one-way flights from Chicago to Buenos Aires in October.

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Updated Aug 25, 2026.

About these fares

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