Cheapest return flights from Hong Kong to San Francisco in September from 677€

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

23 Sep - 23 Sep Asiana Airlines
09 Sep - 22 Sep Asiana Airlines
13 Sep - 20 Sep United direct
20 Sep - 04 Oct United direct
09 Sep - 22 Sep United direct
17 Sep - 27 Sep United direct
08 Sep - 30 Sep United direct
26 Sep - 13 Oct Philippine Airlines
27 Sep - 08 Oct United
26 Sep - 07 Oct United
23 Sep - 23 Sep Cathay Pacific direct
26 Sep - 13 Oct Cathay Pacific direct
26 Sep - 10 Oct Air Canada

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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