Cheapest one-way flights from Hong Kong to San Francisco in September from $399

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

One-Way flights

08 Sep HK Express
03 Sep HK Express
15 Sep HK Express
13 Sep HK Express
14 Sep HK Express
06 Sep STARLUX Airlines
15 Sep Cathay Pacific direct
08 Sep Cathay Pacific direct
29 Sep Cathay Pacific direct
06 Sep Cathay Pacific direct

Also check the deals for return 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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