Cheapest return flights from Singapore to Lisbon in September from $715

AirHint found the following cheapest return flights from Singapore (SIN) to Lisbon (LIS) in September 2026 (see full year).

Return flights

09 Sep - 18 Sep Finnair
08 Sep - 15 Sep Finnair
22 Sep - 06 Oct Finnair
20 Sep - 27 Sep Etihad Airways
08 Sep - 19 Sep Etihad Airways
21 Sep - 05 Oct Etihad Airways
12 Sep - 19 Sep Turkish Airlines
25 Sep - 03 Oct TAP

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

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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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