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

Return flights

27 Sep - 30 Oct	LATAM Airlines Group
16 Sep - 08 Oct	Iberia
17 Sep - 08 Oct	Iberia
28 Sep - 05 Oct	Air France
30 Sep - 18 Oct	LATAM Airlines Group
30 Sep - 10 Oct	LATAM Airlines Group
02 Sep - 16 Sep	British Airways
01 Sep - 30 Sep	LATAM Airlines Group
15 Sep - 20 Oct	LATAM Airlines Group
01 Sep - 23 Oct	Air France
16 Sep - 07 Oct	Air France
08 Sep - 25 Sep	LATAM Airlines Group
03 Sep - 28 Sep	LATAM Airlines Group
05 Sep - 27 Sep	LATAM Airlines Group
18 Sep - 22 Sep	Iberia For Level
17 Sep - 24 Sep	Iberia For Level
18 Sep - 29 Sep	Iberia For Level
06 Sep - 18 Oct	Avianca
12 Sep - 20 Sep	LATAM Airlines Group
25 Sep - 28 Sep	Turkish Airlines

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

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 Lisbon in September from 781€

Return flights