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

Return flights

16 Mar - 22 Mar	British Airways
26 Mar - 14 Apr	ITA Airways
08 Mar - 22 Mar	British Airways
02 Mar - 09 Mar	British Airways
12 Mar - 27 Mar	British Airways
16 Mar - 26 Mar	British Airways
06 Mar - 25 Mar	British Airways
05 Mar - 19 Mar	Iberia
11 Mar - 13 Mar	Iberia
12 Mar - 14 Mar	Iberia
23 Mar - 06 Apr	KLM
24 Mar - 15 Apr	KLM
14 Mar - 26 Mar	KLM
24 Mar - 16 Apr	KLM
24 Mar - 17 Apr	KLM
26 Mar - 11 Apr	KLM
29 Mar - 08 Apr	Delta
28 Mar - 04 Apr	KLM
28 Mar - 12 Apr	KLM
27 Mar - 17 Apr	KLM

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

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 March from 995€

Return flights