AirHint found the following cheapest return flights from Warsaw (WAW) to Singapore (SIN) in September 2025 (see full year).

Return flights

18 Sep - 01 Oct	Wizz Air
30 Sep - 24 Oct	Wizz Air
25 Sep - 13 Oct	Wizz Air Malta
28 Sep - 08 Oct	Wizz Air Malta
30 Sep - 07 Oct	Wizz Air
09 Sep - 01 Oct	Aegean Airlines
25 Sep - 06 Oct	Wizz Air Malta
18 Sep - 05 Oct	Wizz Air
08 Sep - 24 Sep	Ryanair
18 Sep - 02 Oct	Wizz Air
15 Sep - 26 Sep	Ryanair
28 Sep - 03 Oct	LOT
10 Sep - 24 Sep	Wizz Air
08 Sep - 17 Sep	Ryanair
09 Sep - 16 Sep	SKY express
18 Sep - 29 Sep	Wizz Air
09 Sep - 23 Sep	British Airways
07 Sep - 23 Sep	British Airways
18 Sep - 24 Sep	British Airways
14 Sep - 29 Sep	British Airways

Also check the deals for one-way flights from Warsaw to Singapore 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 Warsaw to Singapore in September from 549€

Return flights