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

Return flights

01 Dec - 08 Dec	Vueling Airlines
01 Dec - 15 Dec	Iberia For Level
26 Dec - 31 Jan	Iberia For Level
03 Dec - 15 Dec	Iberia For Level
01 Dec - 12 Dec	Iberia For Level
01 Dec - 22 Dec	Iberia For Level
04 Dec - 25 Dec	Iberia For Level
03 Dec - 19 Dec	Iberia For Level
04 Dec - 16 Dec	Iberia For Level
30 Dec - 21 Jan	British Airways
30 Dec - 25 Jan	British Airways
30 Dec - 26 Jan	British Airways
10 Dec - 30 Dec	Iberia For Level
26 Dec - 24 Jan	Iberia For Level
29 Dec - 22 Jan	Iberia For Level
15 Dec - 25 Jan	British Airways
15 Dec - 16 Jan	British Airways
10 Dec - 16 Jan	Iberia For Level
01 Dec - 17 Jan	Iberia For Level
08 Dec - 26 Dec	Iberia For Level

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 $1056

Return flights