AirHint found the following cheapest return flights from London (LHR) to Santiago (SCL) in December 2026 (see full year).

Return flights

10 Dec - 24 Dec	Air Canada
03 Dec - 10 Dec	Air Canada
03 Dec - 15 Dec	Air Canada
01 Dec - 10 Dec	Air Canada
03 Dec - 13 Dec	Air Canada
15 Dec - 12 Jan	Air Canada
16 Dec - 23 Dec	Iberia
16 Dec - 14 Jan	Air Canada
16 Dec - 12 Jan	Air Canada
28 Dec - 15 Jan	Turkish Airlines
16 Dec - 15 Jan	Air Canada
12 Dec - 12 Jan	Air Canada
17 Dec - 24 Dec	LATAM Airlines Group
01 Dec - 15 Dec	Air France
28 Dec - 06 Jan	Turkish Airlines
30 Dec - 08 Jan	Turkish Airlines
21 Dec - 18 Jan	Iberia
17 Dec - 12 Jan	British Airways
03 Dec - 17 Dec	SWISS
20 Dec - 27 Dec	Iberia

Also check the deals for one-way flights from London to Santiago 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 London to Santiago in December from $975

Return flights