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

Return flights

14 Mar - 26 Mar	United
16 Mar - 23 Mar	United
19 Mar - 26 Mar	United
13 Mar - 23 Mar	United
14 Mar - 24 Mar	United
02 Mar - 17 Mar	United
12 Mar - 19 Mar	United
04 Mar - 17 Mar	United
05 Mar - 22 Mar	United
12 Mar - 26 Mar	United
07 Mar - 17 Apr	Avianca
07 Mar - 04 Apr	Avianca
25 Mar - 17 Apr	Vueling Airlines
31 Mar - 07 Apr	Avianca
16 Mar - 27 Apr	Avianca
28 Mar - 15 Apr	Aer Lingus
26 Mar - 07 Apr	Delta
26 Mar - 19 Apr	Delta
30 Mar - 06 Apr	Delta
19 Mar - 05 Apr	Delta

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 $1021

Return flights