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

Return flights

05 Mar - 12 Mar	Iberia
11 Mar - 17 Mar	Iberia
12 Mar - 16 Mar	Iberia
12 Mar - 17 Mar	Iberia
05 Mar - 24 Mar	Iberia
10 Mar - 15 Mar	British Airways
06 Mar - 23 Mar	Iberia
21 Mar - 05 Apr	Iberia
02 Mar - 09 Mar	Iberia
12 Mar - 21 Mar	Iberia
06 Mar - 27 Mar	British Airways
30 Mar - 17 Apr	Avianca
25 Mar - 07 Apr	British Airways
28 Mar - 13 Apr	British Airways
20 Mar - 13 Apr	Avianca
28 Mar - 11 Apr	Finnair
27 Mar - 05 Apr	Finnair
27 Mar - 11 Apr	British Airways

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 821€

Return flights