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

Return flights

07 Dec - 23 Dec	Asiana Airlines
07 Dec - 17 Dec	Asiana Airlines
01 Dec - 16 Dec	Asiana Airlines
03 Dec - 14 Dec	Asiana Airlines
03 Dec - 18 Dec	Asiana Airlines
08 Dec - 17 Dec	Asiana Airlines
08 Dec - 18 Dec	Asiana Airlines
08 Dec - 19 Dec	Asiana Airlines
02 Dec - 13 Dec	Asiana Airlines
08 Dec - 15 Dec	Asiana Airlines
29 Dec - 26 Jan	Singapore Airlines
29 Dec - 17 Jan	Delta
28 Dec - 23 Jan	Korean Air
03 Dec - 01 Jan	Asiana Airlines
25 Dec - 21 Jan	Cathay Pacific
25 Dec - 20 Jan	Cathay Pacific
27 Dec - 26 Jan	Asiana Airlines
27 Dec - 13 Jan	Cathay Pacific
26 Dec - 14 Jan	Cathay Pacific
26 Dec - 12 Jan	Cathay Pacific

Also check the deals for one-way flights from Los Angeles to Singapore in December.

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 December from $656

Return flights