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

Return flights

06 Sep - 07 Sep	Japan Airlines
02 Sep - 16 Sep	Japan Airlines
18 Sep - 25 Sep	Japan Airlines
03 Sep - 05 Sep	Japan Airlines
02 Sep - 30 Sep	Japan Airlines
06 Sep - 10 Sep	Japan Airlines
12 Sep - 16 Sep	Japan Airlines
02 Sep - 03 Sep	Japan Airlines
05 Sep - 07 Sep	Japan Airlines
21 Sep - 26 Sep	Japan Airlines
16 Sep - 27 Oct	ANA
28 Sep - 03 Oct	Japan Airlines
29 Sep - 05 Oct	ANA
27 Sep - 02 Oct	Japan Airlines
30 Sep - 07 Oct	Japan Airlines
18 Sep - 08 Oct	Japan Airlines
28 Sep - 08 Oct	Japan Airlines
22 Sep - 05 Oct	Japan Airlines
16 Sep - 26 Oct	ANA
26 Sep - 07 Oct	Japan Airlines

Also check the deals for one-way flights from Taipei to Los Angeles 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 Taipei to Los Angeles in September from $768

Return flights