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

Return flights

15 Dec - 26 Dec	Ryanair
15 Dec - 28 Dec	easyJet
01 Dec - 07 Dec	Wizz Air Malta
04 Dec - 11 Dec	easyJet
15 Dec - 19 Jan	Ryanair
06 Dec - 19 Jan	easyJet
02 Dec - 07 Dec	Wizz Air Malta
04 Dec - 07 Dec	easyJet
03 Dec - 12 Dec	Wizz Air Malta
30 Dec - 30 Jan	easyJet
03 Dec - 29 Jan	easyJet
03 Dec - 21 Dec	Wizz Air Malta
10 Dec - 19 Jan	Wizz Air Malta
05 Dec - 19 Jan	easyJet
02 Dec - 11 Dec	Wizz Air Malta
10 Dec - 16 Jan	Wizz Air
01 Dec - 16 Dec	Wizz Air Malta
31 Dec - 22 Jan	easyJet
29 Dec - 19 Jan	easyJet
24 Dec - 19 Jan	easyJet

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 813€

Return flights