Cheapest one-way flights from Boston to Buenos Aires in February from $398

AirHint found the following cheapest one-way flights from Boston (BOS) to Buenos Aires (AEP) in February 2026 (see full year).

One-Way flights

24 Feb Spirit Airlines
02 Feb Spirit Airlines
03 Feb Avianca
04 Feb Spirit Airlines
05 Feb Spirit Airlines
21 Feb Avianca
09 Feb LATAM Airlines Group
27 Feb LATAM Airlines Group
18 Feb LATAM Airlines Group
06 Feb LATAM Airlines Group

Also check the deals for return flights from Boston to Buenos Aires in February.

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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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