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

Return flights

26 Mar - 09 Apr	LATAM Airlines Group
12 Mar - 19 Mar	Avianca
19 Mar - 26 Mar	Avianca
31 Mar - 30 Apr	Avianca
10 Mar - 15 Mar	Iberia
11 Mar - 16 Mar	Iberia
10 Mar - 17 Mar	Iberia
03 Mar - 26 Mar	Iberia
12 Mar - 19 Mar	British Airways	direct
03 Mar - 26 Mar	British Airways	direct
11 Mar - 15 Mar	Air Canada
10 Mar - 16 Mar	British Airways	direct

Also check the deals for one-way flights from Santiago to London 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 Santiago to London in March from 709€

Return flights