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Cheap flights from Hong Kong to San Francisco from £298

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 17/12. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SFO
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 Monday or Tuesday and return on a Wednesday

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 12 September 2025.

Round-trip from

£481

One-way from

£298

Popular in

August

Cheapest in

March

Average price

£625

Good one-way deal

£687 or less
China Airlines
  • China Airlines
  • 25/9-15/10
  • 2 total stops
  • 41h 50m total
  • Hong Kong to San Francisco
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Philippine Airlines
  • Philippine Airlines
  • 14/12
  • 1 total stop
  • 21h 50m total
  • Hong Kong to San Francisco
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Highest demand for flights based on searches. 10% potential increase in price (£59 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a one-way flight from Hong Kong Intl to San Francisco.
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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 12 September 2025.

Thu 25/914:00HKG - SFO
1 stop20h 55mChina Airlines
Wed 15/1001:05SFO - HKG
1 stop20h 55mChina Airlines
Deal found 10/9£481
Thu 11/917:30HKG - SFO
1 stop18h 00mChina Airlines
Tue 23/901:05SFO - HKG
1 stop20h 55mChina Airlines
Deal found 10/9£483
Sun 26/1022:45HKG - SFO
1 stop36h 45mPhilippine Airlines
Sat 8/1122:30SFO - HKG
1 stop19h 45mPhilippine Airlines
Deal found 11/9£486
Sun 26/1000:30HKG - SFO
1 stop29h 30mAsiana Airlines
Thu 6/1123:30SFO - HKG
1 stop31h 00mAsiana Airlines
Deal found 11/9£494
Fri 12/911:15HKG - SFO
Nonstop12h 40mUnited Airlines
Thu 25/906:00SFO - HKG
1 stop19h 45mUnited Airlines
Deal found 11/9£509
Sun 26/1022:30HKG - SFO
Nonstop12h 25mUnited Airlines
Thu 6/1111:40SFO - HKG
Nonstop15h 40mUnited Airlines
Deal found 11/9£510
Sat 18/1015:25HKG - SFO
1 stop15h 35mEVA Air
Tue 18/1123:30SFO - HKG
1 stop18h 40mEVA Air
Deal found 10/9£512
Sun 12/1010:15HKG - SFO
1 stop24h 40mChina Airlines
Tue 18/1123:40SFO - HKG
1 stop18h 30mChina Airlines
Deal found 11/9£513
Wed 24/1210:35HKG - SFO
Nonstop12h 25mUnited Airlines
Wed 31/1207:25SFO - HKG
1 stop31h 35mUnited Airlines
Deal found 12/9£515
Sun 26/1022:45HKG - SFO
1 stop38h 05mUnited Airlines
Sun 2/1105:00SFO - HKG
2 stops45h 15mUnited Airlines
Deal found 11/9£538
Sat 25/1000:50HKG - SFO
Nonstop12h 50mCathay Pacific
Sat 1/1100:35SFO - HKG
Nonstop15h 20mCathay Pacific
Deal found 11/9£549

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 858,174 searches. Data last updated 12 September 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 18/10

18:20-20:50

1 stop17h 30m

San Francisco

Mon 17/11

22:30-12:30

1 stop22h 00m

£486

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sun 1/2

22:30-18:55

Nonstop12h 25m

San Francisco

Thu 26/2

11:40-19:20

Nonstop15h 40m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 27/10

13:25-10:45

Nonstop12h 20m

San Francisco

Sun 9/11

22:55-06:20

Nonstop15h 25m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Fri 31/10

22:30-19:55

Nonstop12h 25m

San Francisco

Wed 5/11

23:15-06:45

Nonstop15h 30m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 20/10

22:30-20:10

Nonstop12h 40m

San Francisco

Wed 19/11

11:40-19:20

Nonstop15h 40m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Fri 20/2

10:35-07:00

Nonstop12h 25m

San Francisco

Tue 24/2

11:40-19:20

Nonstop15h 40m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sun 26/10

10:35-08:00

Nonstop12h 25m

San Francisco

Sat 8/11

23:15-06:45

Nonstop15h 30m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sun 26/10

10:35-08:00

Nonstop12h 25m

San Francisco

Sun 2/11

07:25-19:15

1 stop19h 50m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Thu 6/11

22:30-18:55

Nonstop12h 25m

San Francisco

Sun 9/11

11:40-19:20

Nonstop15h 40m

£510

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sat 18/10

13:30-16:00

1 stop17h 30m

San Francisco

Sat 22/11

23:50-09:00

1 stop17h 10m

£512

Flights are sorted by cheapest return flights first.

Deals found on 12/9

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 29 August 2025.

Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Hong Kong to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Hong Kong to San Francisco (average of £538). Flying from Hong Kong to San Francisco in July is currently the most expensive (average of £803). 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 12 September 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 at midday tend to be the most expensive. A flight in the morning could potentially save you up to 4% on airfare.

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?

    The Hong Kong Intl to San Francisco flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Hong Kong to San Francisco?

    For as low as £510, Philippine Airlines can have you in San Francisco from Hong Kong in 12h 25m. Hong Kong and San Francisco are separated by a distance of 6910 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Hong Kong to San Francisco one-way?

    One-way options have recently been found by users for as low as £298 on Philippine Airlines. Other airlines that offer cheap prices include China Airlines from £298 and STARLUX Airlines from £312 one-way.

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

    Before booking your flight to San Francisco from Hong Kong, check out the most reliable airlines to get you to your destination on time: United Airlines (73%), American Airlines (53%), Cathay Pacific( 53%).

  • What are the cheapest flights from Hong Kong to San Francisco?

    On average you can expect to pay £687 for a flight from Hong Kong to San Francisco. The cheapest flight overall is £438 while the most popular route, (Hong Kong Intl - San Francisco) is currently priced at £752.

  • 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, February is the cheapest month in which you can book a flight from Hong Kong to San Francisco (average of £538). Flying from Hong Kong to San Francisco in July is currently the most expensive (average of £803). 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
Santa Cruz
Newark
South San Francisco
Bodega Bay
Pacific Grove

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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?

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

Yes! Cheapflights helps users easily find flights from Hong Kong to San Francisco with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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