AirHint found the following cheapest return flights from Lisbon (LIS) to Singapore (SIN) in October 2025 (see full year).

Return flights

17 Oct - 10 Nov	Etihad Airways
20 Oct - 10 Nov	SWISS
20 Oct - 07 Nov	SWISS
08 Oct - 14 Oct	Etihad Airways
03 Oct - 07 Oct	Etihad Airways
10 Oct - 15 Oct	Etihad Airways
13 Oct - 03 Nov	SWISS
31 Oct - 23 Nov	SWISS
19 Oct - 09 Nov	Lufthansa
19 Oct - 06 Nov	Lufthansa
17 Oct - 09 Nov	Etihad Airways
03 Oct - 25 Oct	Etihad Airways
31 Oct - 21 Nov	SWISS
29 Oct - 03 Nov	Etihad Airways
08 Oct - 25 Oct	Etihad Airways
01 Oct - 31 Oct	SWISS
03 Oct - 10 Oct	Etihad Airways
19 Oct - 26 Oct	Turkish Airlines
04 Oct - 11 Oct	Finnair

Also check the deals for one-way flights from Lisbon to Singapore in October.

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 Lisbon to Singapore in October from 594€

Return flights