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

Return flights

05 Mar - 19 Mar	Air Canada
05 Mar - 18 Mar	Air Canada
05 Mar - 26 Mar	Air Canada
03 Mar - 24 Mar	Air Canada
03 Mar - 10 Mar	Air Canada
05 Mar - 12 Mar	Air Canada
04 Mar - 11 Mar	Air Canada
09 Mar - 16 Mar	Air Canada
04 Mar - 17 Mar	Air Canada
11 Mar - 16 Mar	Air Canada
16 Mar - 07 Apr	Air Canada
16 Mar - 13 Apr	Vueling Airlines
24 Mar - 07 Apr	Avianca
21 Mar - 05 Apr	Iberia
12 Mar - 05 Apr	Iberia
26 Mar - 03 Apr	Iberia
31 Mar - 12 Apr	Iberia
11 Mar - 03 Apr	British Airways	direct
26 Mar - 03 Apr	British Airways	direct
21 Mar - 06 Apr	LATAM Airlines Group

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 810€

Return flights