Cheapest return flights from Washington to Santiago in December from 550€

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

Return flights

04 Dec - 13 Dec Avianca
05 Dec - 21 Dec Avianca
29 Dec - 07 Jan Delta
27 Dec - 03 Jan Avianca
27 Dec - 02 Jan Frontier Airlines
27 Dec - 06 Jan Avianca
16 Dec - 11 Jan United
18 Dec - 03 Jan LATAM Airlines Group
11 Dec - 04 Jan Delta
17 Dec - 05 Jan Air Canada
12 Dec - 04 Jan Delta
17 Dec - 04 Jan Delta

Also check the deals for one-way flights from Washington 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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