AirHint found the following cheapest return flights from London (LHR) to Santiago (SCL) in August 2025 (see full year).

Return flights

31 Aug - 21 Sep	Air France
28 Aug - 04 Sep	Delta
25 Aug - 29 Sep	Delta
26 Aug - 02 Sep	Delta
27 Aug - 03 Sep	Delta
28 Aug - 02 Sep	Delta
25 Aug - 07 Sep	Avianca
29 Aug - 07 Sep	Avianca
29 Aug - 14 Sep	Avianca
30 Aug - 05 Sep	Avianca
25 Aug - 31 Aug	Avianca
24 Aug - 31 Aug	Air France
26 Aug - 29 Aug	Iberia
25 Aug - 29 Aug	Avianca
25 Aug - 28 Aug	Avianca
28 Aug - 31 Aug	Avianca
27 Aug - 31 Aug	Avianca
26 Aug - 31 Aug	Iberia
24 Aug - 28 Aug	Avianca
25 Aug - 31 Aug	British Airways	direct

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

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.

Book a cheap hotel in Santiago

Cheap car rent in Santiago

Cheapest return flights from London to Santiago in August from $1091

Return flights