Cheapest return flights from Boston to Buenos Aires in December from 880€

AirHint found the following cheapest return flights from Boston (BOS) to Buenos Aires (AEP) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec LATAM Airlines Group
10 Dec - 05 Jan Spirit Airlines
12 Dec - 09 Jan jetBlue
15 Dec - 15 Jan LATAM Airlines Group
30 Dec - 06 Jan LATAM Airlines Group
16 Dec - 02 Jan LATAM Airlines Group
26 Dec - 02 Jan LATAM Airlines Group
21 Dec - 03 Jan LATAM Airlines Group
26 Dec - 03 Jan LATAM Airlines Group

Also check the deals for one-way flights from Boston to Buenos Aires in December.

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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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