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

Return flights

07 Apr - 21 Apr	KLM
14 Apr - 31 May	KLM
07 Apr - 14 Apr	KLM
30 Apr - 16 May	KLM
02 Apr - 12 Apr	Delta
11 Apr - 30 Apr	KLM
01 Apr - 06 Apr	Luxair
02 Apr - 19 Apr	KLM
22 Apr - 26 Apr	KLM
09 Apr - 30 Apr	KLM
02 Apr - 16 Apr	KLM
02 Apr - 15 Apr	Delta
04 Apr - 24 May	KLM

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 1097€

Return flights