AirHint found the following cheapest return flights from Xi'an (XIY) to Singapore (SIN) in September 2025 (see full year).

Return flights

24 Sep - 30 Sep	Xiamen Airlines
03 Sep - 19 Sep	AirAsia X
04 Sep - 24 Sep	AirAsia X
03 Sep - 09 Sep	AirAsia X
24 Sep - 30 Sep	Scoot Tigerair	direct
03 Sep - 05 Sep	AirAsia X
03 Sep - 17 Sep	AirAsia X
11 Sep - 26 Sep	AirAsia X
10 Sep - 26 Sep	AirAsia X
11 Sep - 24 Sep	AirAsia X
11 Sep - 01 Oct	AirAsia X
13 Sep - 01 Oct	AirAsia X
24 Sep - 01 Oct	AirAsia X
15 Sep - 01 Oct	AirAsia X
27 Sep - 01 Oct	AirAsia X
29 Sep - 01 Oct	AirAsia X
24 Sep - 10 Oct	AirAsia X
27 Sep - 10 Oct	AirAsia X
29 Sep - 10 Oct	AirAsia X
24 Sep - 08 Oct	AirAsia X

Also check the deals for one-way flights from Xi'an 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 Xi'an to Singapore in September from $337

Return flights