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

Return flights

18 Apr - 01 May	Vueling Airlines
18 Apr - 28 Apr	Vueling Airlines
27 Apr - 11 May	Avianca
07 Apr - 14 Apr	Avianca
14 Apr - 23 Apr	KLM
09 Apr - 01 May	Avianca
27 Apr - 17 May	Avianca
15 Apr - 08 May	Avianca
23 Apr - 14 May	Vueling Airlines
13 Apr - 20 Apr	Avianca
01 Apr - 06 Apr	Avianca
01 Apr - 28 Apr	Avianca
13 Apr - 10 May	Avianca
09 Apr - 30 Apr	Avianca
23 Apr - 29 Apr	Avianca
22 Apr - 28 Apr	Avianca
24 Apr - 30 Apr	Avianca
24 Apr - 03 May	Turkish Airlines
25 Apr - 10 May	British Airways
24 Apr - 02 May	Avianca

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 $1076

Return flights