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

Return flights

15 Oct - 04 Nov	Avianca
27 Oct - 13 Nov	Avianca
07 Oct - 19 Oct	Avianca
14 Oct - 30 Oct	Avianca
25 Oct - 25 Nov	LATAM Airlines Group
27 Oct - 30 Nov	LATAM Airlines Group
01 Oct - 21 Oct	Avianca
15 Oct - 03 Nov	Avianca
12 Oct - 20 Oct	Avianca
14 Oct - 03 Nov	Avianca
07 Oct - 20 Oct	Avianca
06 Oct - 19 Oct	Avianca
05 Oct - 19 Oct	Avianca
07 Oct - 23 Oct	Avianca
30 Oct - 26 Nov	Air Canada
22 Oct - 14 Nov	Avianca
24 Oct - 01 Nov	Avianca
16 Oct - 22 Oct	Avianca
17 Oct - 02 Nov	Avianca
03 Oct - 13 Oct	Avianca

Also check the deals for one-way flights from Santiago to London in October.

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 Santiago to London in October from 720€

Return flights