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

Return flights

23 Dec - 16 Jan	Iberia For Level
22 Dec - 13 Jan	Iberia For Level
22 Dec - 14 Jan	Iberia For Level
22 Dec - 12 Jan	Iberia For Level
12 Dec - 03 Jan	LATAM Airlines Group
12 Dec - 19 Dec	LATAM Airlines Group

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

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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Cheapest return flights from Santiago to Lisbon in December from 806€

Return flights