AirHint found the following cheapest return flights from San Francisco (SFO) to Taipei (TPE) in September 2025 (see full year).

Return flights

10 Sep - 18 Sep	Philippine Airlines
17 Sep - 16 Oct	Philippine Airlines
24 Sep - 01 Oct	Philippine Airlines
01 Sep - 03 Sep	Asiana Airlines
22 Sep - 28 Sep	Philippine Airlines
27 Sep - 11 Oct	United	direct
02 Sep - 07 Sep	United	direct
13 Sep - 21 Sep	United	direct
08 Sep - 17 Sep	United	direct
12 Sep - 19 Sep	United	direct
17 Sep - 16 Oct	United	direct
24 Sep - 01 Oct	United	direct
22 Sep - 28 Sep	United	direct
25 Sep - 19 Oct	United	direct
10 Sep - 18 Sep	United	direct
01 Sep - 03 Sep	United	direct
30 Sep - 07 Oct	Delta

Also check the deals for one-way flights from San Francisco to Taipei 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 San Francisco to Taipei in September from 610€

Return flights