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

Return flights

24 Sep - 28 Oct	Wizz Air
30 Sep - 07 Oct	Wizz Air
27 Sep - 12 Oct	Ryanair
23 Sep - 07 Oct	Wizz Air
16 Sep - 23 Sep	Wizz Air
30 Sep - 14 Oct	Wizz Air
27 Sep - 09 Oct	Ryanair
27 Sep - 11 Oct	Ryanair
02 Sep - 10 Sep	Ryanair
28 Sep - 12 Oct	Air Arabia
29 Sep - 09 Oct	Air Arabia
29 Sep - 14 Oct	Air Arabia
06 Sep - 10 Sep	Ryanair
09 Sep - 14 Sep	Ryanair
02 Sep - 09 Sep	Ryanair
09 Sep - 16 Sep	Ryanair
06 Sep - 22 Sep	Ryanair
06 Sep - 14 Sep	Ryanair
14 Sep - 24 Sep	Wizz Air
16 Sep - 29 Sep	Wizz Air

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 $623

Return flights