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

Return flights

31 Dec - 30 Jan	Ryanair
30 Dec - 25 Jan	Ryanair
31 Dec - 22 Jan	Ryanair
31 Dec - 16 Jan	Ryanair
26 Dec - 25 Jan	Wizz Air UK
24 Dec - 23 Jan	easyJet
26 Dec - 23 Jan	Wizz Air UK
31 Dec - 15 Jan	Ryanair
23 Dec - 26 Jan	Vueling Airlines
22 Dec - 25 Jan	Vueling Airlines
24 Dec - 28 Dec	easyJet
29 Dec - 30 Dec	Vueling Airlines

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 $1291

Return flights