Cheapest one-way flights from Chicago to Buenos Aires in March from 305€

AirHint found the following cheapest one-way flights from Chicago (ORD) to Buenos Aires (AEP) in March 2026 (see full year).

One-Way flights

16 Mar Avianca
17 Mar Avianca
18 Mar LATAM Airlines Group
04 Mar LATAM Airlines Group
10 Mar LATAM Airlines Group
19 Mar LATAM Airlines Group
25 Mar LATAM Airlines Group
01 Mar LATAM Airlines Group
07 Mar LATAM Airlines Group
13 Mar LATAM Airlines Group

Also check the deals for return flights from Chicago to Buenos Aires in March.

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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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