Cheapest return flights from Hong Kong to San Francisco in September from $681

Best time to book flights for Hong Kong (HKG) to San Francisco (SFO) flights at AirHint

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

Return flights

29 Sep - 03 Oct STARLUX Airlines
27 Sep - 06 Oct STARLUX Airlines
30 Sep - 10 Oct STARLUX Airlines
09 Sep - 07 Oct STARLUX Airlines
01 Sep - 30 Sep STARLUX Airlines
07 Sep - 14 Sep China Airlines
18 Sep - 23 Sep China Airlines
30 Sep - 14 Oct China Airlines
26 Sep - 11 Oct China Airlines
27 Sep - 11 Oct China Airlines
23 Sep - 02 Oct China Airlines
27 Sep - 10 Oct China Airlines
28 Sep - 11 Oct China Airlines
18 Sep - 23 Sep Cathay Pacific direct
03 Sep - 16 Sep Delta

Also check the deals for one-way flights from Hong Kong to San Francisco in September.

Skyscanner

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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