Cheapest return flights from Boston to Santiago in December from 647€

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

Return flights

09 Dec - 16 Dec Spirit Airlines
11 Dec - 23 Dec LATAM Airlines Group
09 Dec - 23 Dec LATAM Airlines Group
09 Dec - 22 Dec LATAM Airlines Group
13 Dec - 05 Jan Avianca
15 Dec - 05 Jan LATAM Airlines Group
18 Dec - 02 Jan Air Canada
19 Dec - 03 Jan Air Canada

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

Skyscanner

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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