$433 Cheap Flights from Hong Kong (HKG) to San Francisco (SFO)

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Cheap Flights from Hong Kong to San Francisco (HKG-SFO)

Prices were available within the past 7 days and start at $433 for one-way flights and $708 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Fri, May 23 - Sat, Jul 19
HKG
Hong Kong SAR
SFO
San Francisco
$708 Roundtrip, found 21 hours ago
$708
Roundtrip
found 21 hours ago
Select Asiana Airlines flight, departing Fri, May 23 from Hong Kong SAR to San Francisco, returning Sat, Jul 19, priced at $708 found 21 hours ago
Air China
Fri, May 23 - Sat, Jul 19
HKG
Hong Kong SAR
SFO
San Francisco
$736 Roundtrip, found 21 hours ago
$736
Roundtrip
found 21 hours ago
Select Air China flight, departing Fri, May 23 from Hong Kong SAR to San Francisco, returning Sat, Jul 19, priced at $736 found 21 hours ago
China Eastern Airlines
Wed, May 7 - Thu, May 22
HKG
Hong Kong SAR
SFO
San Francisco
$741 Roundtrip, found 21 hours ago
$741
Roundtrip
found 21 hours ago
Select China Eastern Airlines flight, departing Wed, May 7 from Hong Kong SAR to San Francisco, returning Thu, May 22, priced at $741 found 21 hours ago
STARLUX Airlines
Fri, Feb 6 - Sun, Feb 22
HKG
Hong Kong SAR
SFO
San Francisco
$783 Roundtrip, found 21 hours ago
$783
Roundtrip
found 21 hours ago
Select STARLUX Airlines flight, departing Fri, Feb 6 from Hong Kong SAR to San Francisco, returning Sun, Feb 22, priced at $783 found 21 hours ago
EVA Airways
Sat, Oct 25 - Wed, Mar 18
HKG
Hong Kong SAR
SFO
San Francisco
$800 Roundtrip, found 21 hours ago
$800
Roundtrip
found 21 hours ago
Select EVA Airways flight, departing Sat, Oct 25 from Hong Kong SAR to San Francisco, returning Wed, Mar 18, priced at $800 found 21 hours ago
United
Thu, Dec 25 - Wed, Jan 14
HKG
Hong Kong SAR
SFO
San Francisco
$833 Roundtrip, found 21 hours ago
$833
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Dec 25 from Hong Kong SAR to San Francisco, returning Wed, Jan 14, priced at $833 found 21 hours ago
Cathay Pacific
Thu, Dec 25 - Wed, Jan 14
HKG
Hong Kong SAR
SFO
San Francisco
$840 Roundtrip, found 21 hours ago
$840
Roundtrip
found 21 hours ago
Select Cathay Pacific flight, departing Thu, Dec 25 from Hong Kong SAR to San Francisco, returning Wed, Jan 14, priced at $840 found 21 hours ago
China Airlines
Sat, Oct 25 - Wed, Mar 18
HKG
Hong Kong SAR
SFO
San Francisco
$841 Roundtrip, found 21 hours ago
$841
Roundtrip
found 21 hours ago
Select China Airlines flight, departing Sat, Oct 25 from Hong Kong SAR to San Francisco, returning Wed, Mar 18, priced at $841 found 21 hours ago
Air Canada
Thu, Oct 9 - Tue, Feb 10
HKG
Hong Kong SAR
SFO
San Francisco
$841 Roundtrip, found 1 day ago
$841
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Oct 9 from Hong Kong SAR to San Francisco, returning Tue, Feb 10, priced at $841 found 1 day ago
Philippine Airlines
Sat, Oct 25 - Wed, Mar 18
HKG
Hong Kong SAR
SFO
San Francisco
$853 Roundtrip, found 21 hours ago
$853
Roundtrip
found 21 hours ago
Select Philippine Airlines flight, departing Sat, Oct 25 from Hong Kong SAR to San Francisco, returning Wed, Mar 18, priced at $853 found 21 hours ago
Flights from Hong Kong (HKG) to San Francisco (SFO)
Origin airport
Hong Kong Intl.
Destination airport
San Francisco Intl.
Airlines serving
Air Canada, Air China, Air France, Air India, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, Delta, EVA Airways, Emirates, Fiji Airways, Japan Airlines, Korean Air, Philippine Airlines, STARLUX Airlines, United, Vietnam Airlines
Roundtrip price
$708
Distance
6912 mi

Hong Kong to San Francisco Flights

The cheapest times to fly from Hong Kong to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Hong Kong to San Francisco are during the month of May. You can find some of the cheapest flights from Hong Kong to San Francisco with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Hong Kong to San Francisco

Sunday is one of the best days to book for cheap flights from Hong Kong to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Hong Kong to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Hong Kong to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $433 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Hong Kong to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Hong Kong to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO) cost?
Cheap round-trip fares from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO) start at $840. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Cathay Pacific flight leaving HKG on May 8 2025 and touching down at SFO. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from HKG to SFO?
The cheapest flights from HKG to SFO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO)?
Fly nonstop from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO) on a Cathay Pacific flight.
What is the cheapest airline that flies from HKG to SFO?
With prices starting from $718 for a one-way flight from HKG to SFO, Cathay Pacific is currently the cheapest carrier flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from HKG on April 28 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO)?
Every day, an average of 4 nonstop flights take off from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO). Choose the departure that fits your schedule best.
What are the most popular departure times for flights from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO)?
More people fly between HKG and SFO at 10 PM than at any other time of day. Looking for a quieter experience? Try choosing a quieter departure window and there’s a chance you’ll save on your fare as well.
What day of the week has the most flights from HKG to SFO?
If you depart on a Friday, you’ll get the largest range of choices for flights from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO).
What is the earliest flight from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO)?
Catch the earliest flight at around 12:55AM UTC+8, departing from Hong Kong Intl. Airport (HKG). You’ll be in the air for approximately 12h 20m, landing at San Francisco Intl. Airport (SFO) at approximately 9:15PM UTC-8.
How long does it take to fly from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO)?
Flights from HKG to SFO have an average travel time of 12 hours and 21 minutes. The total distance between the two is 6,900 mi.
What airline has the least delays from HKG to SFO?
With 94% of flights generally arriving on schedule, Singapore Airlines has the best on-time performance for nonstop flights from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO). To check your flight status and get notified if anything changes, head to the Expedia App.
What is the best time to fly from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO)?
Opt for a flight from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Francisco from Hong Kong Intl. Airport (HKG)?
Compare your flight options from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO). This is the only airport in San Francisco you can land at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO) last-minute?
Last-minute bookings from HKG to SFO are usually more expensive. To lock in the best rates, start searching for flights well in advance. That being said, if you’re flexible with your travel dates, it’s possible to score a cheap fare just before your departure.
Is it cheaper to book a HKG to SFO flight and hotel package?
Securing a HKG to SFO flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Hong Kong Intl. Airport (HKG) to San Francisco Intl. Airport (SFO)?
If you booked your HKG to SFO flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.