Cheapest one-way flights from Boston to Buenos Aires in January from $484

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

One-Way flights

10 Jan Avianca
25 Jan LATAM Airlines Group
28 Jan LATAM Airlines Group
15 Jan jetBlue
19 Jan LATAM Airlines Group
16 Jan LATAM Airlines Group

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

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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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