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

Return flights

04 Dec - 09 Dec	easyJet
06 Dec - 09 Dec	Ryanair
06 Dec - 15 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
03 Dec - 16 Dec	easyJet
06 Dec - 13 Dec	easyJet
10 Dec - 24 Dec	easyJet
03 Dec - 09 Dec	easyJet
06 Dec - 12 Dec	easyJet
08 Dec - 15 Dec	Ryanair
10 Dec - 17 Jan	easyJet
31 Dec - 12 Jan	easyJet
31 Dec - 22 Jan	easyJet
29 Dec - 22 Jan	easyJet
15 Dec - 31 Jan	easyJet
28 Dec - 22 Jan	Wizz Air Malta
13 Dec - 29 Jan	easyJet
27 Dec - 22 Jan	easyJet
31 Dec - 14 Jan	Wizz Air Malta
15 Dec - 17 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 855€

Return flights