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

15 Sep - 22 Sep STARLUX Airlines
13 Sep - 20 Sep STARLUX Airlines
20 Sep - 23 Sep STARLUX Airlines
10 Sep - 17 Sep STARLUX Airlines
17 Sep - 24 Sep STARLUX Airlines
12 Sep - 19 Sep STARLUX Airlines
09 Sep - 16 Sep STARLUX Airlines
08 Sep - 15 Sep STARLUX Airlines
18 Sep - 25 Sep STARLUX Airlines
02 Sep - 09 Sep STARLUX Airlines
28 Sep - 11 Oct China Airlines
30 Sep - 10 Oct China Airlines
27 Sep - 07 Oct China Airlines
30 Sep - 10 Oct Cathay Pacific direct
28 Sep - 11 Oct Cathay Pacific direct
26 Sep - 11 Oct Cathay Pacific direct
27 Sep - 07 Oct Cathay Pacific direct
01 Sep - 06 Oct Delta
01 Sep - 06 Oct Cathay Pacific direct

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.

Book a cheap hotel in San Francisco

Cheap car rent in San Francisco