Cheapest return flights from Chicago to Santiago in December from 541€

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

Return flights

04 Dec - 10 Dec Frontier Airlines
04 Dec - 09 Dec LATAM Airlines Group
24 Dec - 27 Dec Delta
08 Dec - 12 Dec Delta
15 Dec - 22 Dec Delta
23 Dec - 28 Dec LATAM Airlines Group
22 Dec - 31 Dec LATAM Airlines Group
23 Dec - 27 Dec Delta
26 Dec - 04 Jan Frontier Airlines

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

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