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

Return flights

30 Dec - 25 Jan	Vueling Airlines
29 Dec - 22 Jan	Vueling Airlines
29 Dec - 20 Jan	Vueling Airlines
31 Dec - 22 Jan	Iberia Express
27 Dec - 30 Dec	easyJet
29 Dec - 31 Dec	Vueling Airlines
27 Dec - 31 Dec	Ryanair
27 Dec - 09 Jan	Air Europa
31 Dec - 09 Jan	Vueling Airlines
29 Dec - 10 Jan	Vueling Airlines
31 Dec - 10 Jan	Ryanair
28 Dec - 10 Jan	Ryanair
31 Dec - 07 Jan	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 1058€

Return flights