Cheapest return flights from London to Santiago in September from $1299

Best time to book flights for London (LCY) to Santiago (SCL) flights at AirHint

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

Return flights

01 Sep - 30 Sep ITA Airways
03 Sep - 22 Sep Condor
25 Sep - 17 Oct KLM
11 Sep - 29 Sep KLM
03 Sep - 24 Sep KLM
10 Sep - 24 Sep Condor
12 Sep - 28 Sep KLM
11 Sep - 30 Sep KLM
12 Sep - 30 Sep KLM
11 Sep - 28 Sep KLM
08 Sep - 22 Sep KLM
26 Sep - 10 Oct KLM
15 Sep - 03 Oct KLM

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

Skyscanner

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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