Cheapest return flights from Boston to Santiago in December from 433€

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

Return flights

01 Dec - 07 Dec LATAM Airlines Group
01 Dec - 08 Dec LATAM Airlines Group
02 Dec - 09 Dec LATAM Airlines Group
03 Dec - 10 Dec LATAM Airlines Group
02 Dec - 11 Dec LATAM Airlines Group
01 Dec - 11 Dec LATAM Airlines Group
02 Dec - 14 Dec LATAM Airlines Group
03 Dec - 11 Dec LATAM Airlines Group
04 Dec - 14 Dec LATAM Airlines Group
01 Dec - 14 Dec LATAM Airlines Group
30 Dec - 26 Jan LATAM Airlines Group
31 Dec - 27 Jan LATAM Airlines Group
03 Dec - 24 Jan Copa
31 Dec - 07 Jan Copa
29 Dec - 11 Jan LATAM Airlines Group
23 Dec - 14 Jan LATAM Airlines Group
13 Dec - 10 Jan Spirit Airlines
30 Dec - 09 Jan LATAM Airlines Group
23 Dec - 12 Jan LATAM Airlines Group
23 Dec - 13 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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