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

Return flights

17 Dec - 31 Dec	Iberia
16 Dec - 21 Jan	Iberia
19 Dec - 05 Jan	Sky Airline
15 Dec - 12 Jan	Iberia
17 Dec - 24 Dec	Iberia
19 Dec - 19 Jan	Sky Airline
18 Dec - 09 Jan	Sky Airline
14 Dec - 24 Dec	Iberia
22 Dec - 07 Jan	Hahn Air Technologies
19 Dec - 02 Jan	LATAM Airlines Group
18 Dec - 04 Jan	Sky Airline
16 Dec - 26 Dec	Iberia
15 Dec - 26 Dec	Iberia
22 Dec - 08 Jan	Hahn Air Technologies
16 Dec - 27 Dec	Iberia
21 Dec - 10 Jan	LATAM Airlines Group
16 Dec - 17 Dec	Iberia
14 Dec - 28 Dec	Iberia
25 Dec - 30 Dec	Iberia
15 Dec - 16 Dec	Sky Airline

Also check the deals for one-way flights from Santiago to London 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 London in December from $1238

Return flights