Cheap flights from Hong Kong to San Francisco from $391

If you aren’t able to travel to San Francisco during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $719.

The cheapest day to depart from Hong Kong to San Francisco is on a Monday when prices can be found for as low as $824. The most expensive day to fly to San Francisco is Friday, with ticket prices averaging around $1,127.

Our data shows that the cheapest Hong Kong to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $900. Flights at noon are often more expensive with an average ticket price of $1,144.

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 $842 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 $706 on momondo.

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

You could potentially save up to 7% on your flight if you consider stops on a Hong Kong to San Francisco flight.

As of October 2026, prices for Hong Kong to San Francisco flights are approximately 34% cheaper when compared to flights at the same time last year.

Philippine Airlines and EVA Air are the most popular carriers operating from Hong Kong Intl to San Francisco

United Airlines, Cathay Pacific and EVA Air are the top three most popular airlines that fly to San Francisco from Hong Kong according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 6 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 14% 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 116 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the morning 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, Cathay Pacific have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

Taipei City (TPE) was the most common stop: 88% 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 $659.

Flights connecting via Manila (MNL) have the shortest average one-way travel time: 16h 35m.

Manila (MNL) has the shortest average layover time for this route: 2h 03m.

The number of flights available between Hong Kong and San Francisco is 7 per day as of October 2026. The most frequent departure time is 1:00AM, with 44% of daily flights leaving in the morning.

As of October 2026, 53 flights take off from Hong Kong and land in San Francisco each week. The most common flight departure day for this route is Wed, with 23% of weekly flights taking off on this day.