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

Return flights

25 Aug - 08 Sep	Finnair
18 Aug - 08 Sep	Finnair
26 Aug - 13 Sep	Etihad Airways
28 Aug - 04 Sep	Finnair
25 Aug - 01 Sep	Etihad Airways
17 Aug - 05 Sep	Finnair
31 Aug - 07 Sep	Air France
16 Aug - 05 Sep	Finnair
24 Aug - 31 Aug	Finnair
23 Aug - 30 Aug	Finnair
12 Aug - 19 Aug	Ryanair
29 Aug - 05 Sep	Turkish Airlines
20 Aug - 27 Aug	Finnair
05 Aug - 12 Aug	Ryanair
02 Aug - 09 Aug	easyJet
15 Aug - 25 Aug	Air Europa
21 Aug - 28 Aug	Turkish Airlines
15 Aug - 04 Sep	KLM
04 Aug - 11 Aug	Finnair
01 Aug - 31 Aug	Wizz Air Malta

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

Cheap car rent in Singapore

Cheapest return flights from Lisbon to Singapore in August from 590€

Return flights