Cheapest return flights from Boston to Santiago in December from 461€

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

Return flights

05 Dec - 12 Dec LATAM Airlines Group
13 Dec - 16 Jan Spirit Airlines
29 Dec - 11 Jan Frontier Airlines
13 Dec - 05 Jan Spirit Airlines
20 Dec - 09 Jan Spirit Airlines
23 Dec - 04 Jan Spirit Airlines
19 Dec - 03 Jan LATAM Airlines Group
20 Dec - 16 Jan Copa

Also check the deals for one-way flights from Boston to Santiago 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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