Cheapest return flights from Boston to Buenos Aires in March from $716

AirHint found the following cheapest return flights from Boston (BOS) to Buenos Aires (EZE) in March 2026 (see full year).

Return flights

12 Mar - 24 Mar Spirit Airlines
12 Mar - 23 Mar Spirit Airlines
07 Mar - 16 Mar Avianca
11 Mar - 23 Mar LATAM Airlines Group
03 Mar - 29 Mar Avianca
13 Mar - 20 Mar Air Canada
27 Mar - 12 Apr Air Canada

Also check the deals for one-way flights from Boston 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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