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

Return flights

10 Dec - 17 Dec	Vueling Airlines
10 Dec - 23 Dec	Vueling Airlines
07 Dec - 14 Dec	TAP
31 Dec - 23 Jan	Ryanair
07 Dec - 12 Dec	easyJet
30 Dec - 25 Jan	Ryanair
31 Dec - 22 Jan	Vueling Airlines
29 Dec - 18 Jan	Norse Atlantic Airways (UK)
13 Dec - 22 Dec	Vueling Airlines
29 Dec - 31 Jan	Air Europa
25 Dec - 29 Jan	Norse Atlantic Airways (UK)
15 Dec - 22 Dec	Tunisair
10 Dec - 12 Dec	LATAM Airlines Group
15 Dec - 17 Jan	Tunisair
13 Dec - 15 Jan	Norse Atlantic Airways (UK)
29 Dec - 21 Jan	Iberia
25 Dec - 30 Dec	LATAM Airlines Group
15 Dec - 16 Jan	Norse Atlantic Airways (UK)
11 Dec - 24 Dec	Air Europa
16 Dec - 23 Dec	KM Malta 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 1005€

Return flights