Cheapest return flights from Washington to Santiago in January from $598

AirHint found the following cheapest return flights from Washington (IAD) to Santiago (SCL) in January 2026 (see full year).

Return flights

17 Jan - 29 Jan Frontier Airlines
31 Jan - 14 Feb Avianca
04 Jan - 24 Jan Avianca
16 Jan - 22 Jan Avianca
09 Jan - 16 Jan Avianca
30 Jan - 01 Feb Avianca
10 Jan - 17 Jan Frontier Airlines
08 Jan - 15 Jan Avianca
20 Jan - 26 Jan LATAM Airlines Group
09 Jan - 13 Jan Frontier Airlines
05 Jan - 18 Jan Avianca
10 Jan - 13 Jan Avianca

Also check the deals for one-way flights from Washington to Santiago in January.

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