Cheapest return flights from Boston to Buenos Aires in March from $695

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

Return flights

07 Mar - 12 Mar Avianca
17 Mar - 24 Mar Avianca
20 Mar - 28 Mar Spirit Airlines
08 Mar - 12 Mar Spirit Airlines
08 Mar - 15 Mar Copa
02 Mar - 17 Mar Spirit Airlines
20 Mar - 29 Mar Delta

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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