AirHint found the following cheapest return flights from London (LHR) to Santiago (SCL) in April 2026 (see full year).

Return flights

16 Apr - 23 Apr	Avianca
13 Apr - 27 Apr	Avianca
08 Apr - 25 Apr	Avianca
12 Apr - 26 Apr	Avianca
30 Apr - 16 May	Avianca
30 Apr - 15 May	Avianca
02 Apr - 12 Apr	Avianca
13 Apr - 24 Apr	Avianca
13 Apr - 21 Apr	Avianca
04 Apr - 18 Apr	LATAM Airlines Group
03 Apr - 14 Apr	LATAM Airlines Group
03 Apr - 10 Apr	Iberia

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

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 April from 861€

Return flights