AirHint found the following cheapest one-way flights from Santiago (SCL) to London (LHR) in December 2025 (see full year).

One-Way flights

07 Dec	LATAM Airlines Group
30 Dec	Air Canada
21 Dec	Avianca
20 Dec	Avianca
18 Dec	Iberia For Level
19 Dec	British Airways	direct
21 Dec	British Airways	direct
07 Dec	British Airways	direct
11 Dec	British Airways	direct
30 Dec	British Airways	direct

Also check the deals for return flights from Santiago to London 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 one-way flights from Santiago to London in December from 340€

One-Way flights