AirHint found the following cheapest one-way flights from Chicago (ORD) to Buenos Aires (EZE) in March 2026 (see full year).
One-Way flights
| 08 Mar | Avianca | ||
| 11 Mar | Avianca | ||
| 02 Mar | Avianca | ||
| 14 Mar | Avianca | ||
| 17 Mar | Avianca | ||
| 20 Mar | Avianca | ||
| 23 Mar | Avianca | ||
| 26 Mar | LATAM Airlines Group | ||
| 29 Mar | LATAM Airlines Group |
Also check the deals for return flights from Chicago to Buenos Aires in March.
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