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

Return flights

29 Apr - 08 May	Turkish Airlines
19 Apr - 23 Apr	Turkish Airlines
30 Apr - 08 May	Turkish Airlines
02 Apr - 10 Apr	Turkish Airlines
30 Apr - 10 May	Turkish Airlines
02 Apr - 05 Apr	Turkish Airlines
07 Apr - 14 Apr	Turkish Airlines
28 Apr - 08 May	Turkish Airlines
02 Apr - 12 Apr	Turkish Airlines
02 Apr - 09 Apr	Turkish Airlines
19 Apr - 25 Apr	Turkish Airlines
30 Apr - 16 May	KLM
18 Apr - 25 Apr	Turkish Airlines
09 Apr - 18 Apr	Turkish Airlines
02 Apr - 11 Apr	Turkish Airlines
24 Apr - 09 May	Scoot
23 Apr - 02 May	TAP

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

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 Singapore to Lisbon in April from $696

Return flights