Cheap flights from Hong Kong to San Francisco from $380

If you aren’t able to travel to San Francisco during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $702.

The cheapest day to depart from Hong Kong to San Francisco is on a Monday when prices can be found for as low as $861. The most expensive day to fly to San Francisco is Friday, with ticket prices averaging around $1,173.

Our data shows that the cheapest Hong Kong to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $931. Flights in the morning are often more expensive with an average ticket price of $1,026.

Fly from Hong Kong Intl to San Francisco for the best Hong Kong Intl - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $813 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Hong Kong for as low as $703 on momondo.

There are 3 cabin classes available to choose from on Hong Kong Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Asiana Airlines and United Airlines are the most popular carriers operating from Hong Kong Intl to San Francisco

Cathay Pacific, United Airlines and EVA Air are the top three most popular airlines that fly to San Francisco from Hong Kong according to our data. Cathay Pacific is the first choice among our users, with 41% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 7 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between Hong Kong and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

Taipei City (TPE) was the most common stop: 92% of momondo users choosing 1-stop flights on this route connected there.

Flights via Taipei City (TPE) offer the lowest average round-trip price of $686.

Flights connecting via Taipei City (TPE) have the shortest average one-way travel time: 16h 47m.

Taipei City (TPE) has the shortest average layover time for this route: 2h 50m.

The number of flights available between Hong Kong and San Francisco is 12 per day as of February 2026. The most frequent departure time is 1:00AM, with 32% of daily flights leaving in the morning.

As of February 2026, 89 flights take off from Hong Kong and land in San Francisco each week. The most common flight departure day for this route is Tue, with 16% of weekly flights taking off on this day.