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Cheap flights from Hong Kong to San Francisco from $649

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SFO
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from Hong Kong Intl to San Francisco are usually found in March or June, booked 59 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Hong Kong to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 August 2025.

Round-trip from

$1,024

One-way from

$649

Popular in

August

Cheapest in

March

Average price

$1,728
China Airlines
  • China Airlines
  • 6/9-25/10
  • 2 total stops
  • 43h 55m total
  • Hong Kong to San Francisco
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Vietnam Airlines
  • Vietnam Airlines
  • 12/11
  • 1 total stop
  • 38h 20m total
  • Hong Kong to San Francisco
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($273 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($49 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Hong Kong to San Francisco

Cheapest flights from Hong Kong to San Francisco
Explore the most affordable flight options available from Hong Kong to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Sat 6/911:05HKG - SFO
1 stop24h 25mChina Airlines
Sat 25/1023:40SFO - HKG
1 stop19h 30mChina Airlines
Deal found 14/8$1,024
Fri 17/1020:10HKG - SFO
1 stop14h 45mChina Airlines
Sun 5/401:05SFO - HKG
1 stop17h 10mChina Airlines
Deal found 13/8$1,060
Tue 14/1013:00HKG - SFO
1 stop17h 30mAsiana Airlines
Thu 9/423:30SFO - HKG
1 stop32h 00mAsiana Airlines
Deal found 13/8$1,067
Mon 1/920:10HKG - SFO
1 stop15h 20mChina Airlines
Wed 15/1001:05SFO - HKG
1 stop18h 00mChina Airlines
Deal found 14/8$1,112
Mon 1/913:00HKG - SFO
1 stop17h 30mAsiana Airlines
Sun 14/923:30SFO - HKG
1 stop21h 10mAsiana Airlines
Deal found 14/8$1,116
Sun 31/820:10HKG - SFO
1 stop15h 20mSTARLUX Airlines
Thu 11/900:50SFO - HKG
1 stop18h 05mSTARLUX Airlines
Deal found 14/8$1,135
Sat 27/920:10HKG - SFO
1 stop15h 20mSTARLUX Airlines
Fri 3/1000:50SFO - HKG
1 stop27h 05mSTARLUX Airlines
Deal found 13/8$1,136
Sat 25/1022:30HKG - SFO
Nonstop12h 40mUnited Airlines
Fri 14/1111:40SFO - HKG
Nonstop15h 40mUnited Airlines
Deal found 14/8$1,155
Tue 21/1022:30HKG - SFO
Nonstop12h 40mUnited Airlines
Sat 25/1006:00SFO - HKG
1 stop22h 15mUnited Airlines
Deal found 14/8$1,156
Mon 1/911:15HKG - SFO
Nonstop12h 40mUnited Airlines
Sun 14/918:50SFO - HKG
1 stop19h 50mUnited Airlines
Deal found 13/8$1,158
Fri 10/1011:15HKG - SFO
Nonstop12h 40mUnited Airlines
Thu 6/1123:15SFO - HKG
Nonstop15h 30mUnited Airlines
Deal found 13/8$1,159

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from Hong Kong to San Francisco that are best for you.

Fly from

Hong Kong

Fly to

San Francisco

Route

Depart

Return

Price

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sat 6/9

11:05-20:30

1 stop24h 25m

San Francisco

Sat 25/10

23:40-10:10

1 stop19h 30m

$1,024

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Wed 26/11

20:05-18:45

1 stop14h 40m

San Francisco

Fri 9/1

23:40-09:15

1 stop17h 35m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Fri 17/10

20:10-19:55

1 stop14h 45m

San Francisco

Mon 6/4

01:05-18:55

1 stop26h 50m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sun 26/10

11:10-19:45

1 stop23h 35m

San Francisco

Fri 14/11

23:40-16:35

1 stop24h 55m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sat 25/10

11:05-19:55

1 stop23h 50m

San Francisco

Sun 16/11

23:40-09:15

1 stop17h 35m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 24/11

14:05-18:45

1 stop20h 40m

San Francisco

Wed 7/1

23:40-09:15

1 stop17h 35m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 13/10

14:00-19:55

1 stop20h 55m

San Francisco

Tue 7/4

01:05-09:15

1 stop17h 10m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 24/11

17:35-18:45

1 stop17h 10m

San Francisco

Mon 5/1

23:40-09:15

1 stop17h 35m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Wed 15/10

17:30-19:55

1 stop17h 25m

San Francisco

Sat 18/10

01:05-09:15

1 stop17h 10m

$1,060

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 24/11

14:05-18:45

1 stop20h 40m

San Francisco

Thu 8/1

23:40-10:10

1 stop18h 30m

$1,060

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 24 results
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Best time to book a flight from Hong Kong to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Hong Kong with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to San Francisco

How far ahead should I book a flight from Hong Kong to San Francisco?

Use this chart to determine the optimal time to book a return flight from Hong Kong to San Francisco. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from Hong Kong to San Francisco, you should look to book at least 59 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Hong Kong to San Francisco?

Currently, March is the cheapest month in which you can book a flight from Hong Kong to San Francisco (average of $876). Flying from Hong Kong to San Francisco in December is currently the most expensive (average of $1,375). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HKG to SFO?

Find hourly flight availability from Hong Kong to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2025.

One of the essential ways to save on airfare from Hong Kong to San Francisco is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 28% on airfare.

Weekly flight availability from Hong Kong to San Francisco

Explore weekly flight availability from Hong Kong to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 August 2025.

The most flights from HKG to SFO are scheduled on a Tuesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost for a return flight from Hong Kong to San Francisco?

Related info for your journey

Find useful and relevant information for your journey from Hong Kong to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Hong Kong to San Francisco flight route?

    This flight path from Hong Kong Intl to San Francisco was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the most reliable airlines from Hong Kong to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Hong Kong to San Francisco consider choosing United Airlines(87%), American Airlines(69%) or Cathay Pacific(69%), as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from Hong Kong to San Francisco that include hotel bookings?

    Yes. In addition to deals on Hong Kong to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to San Francisco.

  • Can I find deals for business class flights from Hong Kong to San Francisco?

    Yes. Cheapflights offers flight deals from Hong Kong to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hong Kong to San Francisco?

    Currently, March is the cheapest month in which you can book a flight from Hong Kong to San Francisco (average of $876). Flying from Hong Kong to San Francisco in December is currently the most expensive (average of $1,375). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Sausalito
Santa Cruz
Los Gatos
Mountain View
Davis
Emeryville
Stanford
Milpitas
Daly City

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Fly with Cheapflights

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How does Cheapflights help users find flights from Hong Kong to San Francisco?

Cheapflights makes it easy to find Hong Kong to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Hong Kong to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Hong Kong to San Francisco with no change fees?

Yes, we can. To see specific flights from Hong Kong to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Hong Kong to San Francisco become cheaper?

Of course! You can now track prices for flights from Hong Kong to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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