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

Return flights

09 Sep - 16 Sep	Asiana Airlines
04 Sep - 18 Sep	Asiana Airlines
10 Sep - 17 Sep	Asiana Airlines
25 Sep - 28 Sep	Asiana Airlines
25 Sep - 16 Oct	United
17 Sep - 19 Sep	Asiana Airlines
28 Sep - 02 Oct	Air Canada
03 Sep - 16 Sep	United
08 Sep - 26 Sep	Asiana Airlines
29 Sep - 18 Oct	Asiana Airlines
23 Sep - 29 Sep	Korean Air
23 Sep - 28 Sep	Air Canada
30 Sep - 12 Oct	Air Canada
13 Sep - 05 Oct	United
05 Sep - 11 Sep	Air Canada
26 Sep - 18 Oct	Air Canada
26 Sep - 18 Oct	Singapore Airlines	direct
27 Sep - 04 Oct	Delta
13 Sep - 05 Oct	Singapore Airlines	direct
28 Sep - 02 Oct	Singapore Airlines	direct

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Singapore in September from 584€

Return flights