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

Return flights

10 Apr - 17 Apr	Iberia
17 Apr - 21 Apr	Iberia
28 Apr - 19 May	Iberia
13 Apr - 25 Apr	Iberia
09 Apr - 16 Apr	Iberia
13 Apr - 21 Apr	Iberia
08 Apr - 15 Apr	Avianca
08 Apr - 29 Apr	Avianca
25 Apr - 12 May	Avianca
16 Apr - 30 Apr	Avianca
20 Apr - 24 Apr	Iberia
30 Apr - 16 May	Iberia
01 Apr - 19 Apr	Avianca
25 Apr - 09 May	British Airways
25 Apr - 12 May	British Airways	direct
05 Apr - 05 May	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 840€

Return flights