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Cheap flights from Hong Kong to San Francisco from £311

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SFO
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Hong Kong Intl to San Francisco are usually found in September or October, booked 35 days in advance, depart on a Monday or Thursday and return on a Wednesday

Cheap flight deals from Hong Kong to San Francisco

Enter your travel dates to find the best prices.

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 5 December 2025.

Tue 23/1222:30HKG - SFO
Nonstop12h 25mUnited Airlines
Mon 5/120:00SFO - HKG
1 stop19h 00mUnited Airlines
Deal found 2/12£492
Thu 25/1222:30HKG - SFO
Nonstop12h 25mUnited Airlines
Wed 7/107:25SFO - HKG
1 stop19h 50mUnited Airlines
Deal found 2/12£493
Tue 23/1222:30HKG - SFO
Nonstop12h 25mUnited Airlines
Sun 4/120:50SFO - HKG
2 stops30h 25mUnited Airlines
Deal found 2/12£495
Tue 23/1210:35HKG - SFO
Nonstop12h 25mUnited Airlines
Fri 2/123:15SFO - HKG
Nonstop15h 30mUnited Airlines
Deal found 3/12£525
Tue 23/1222:30HKG - SFO
Nonstop12h 25mUnited Airlines
Tue 20/111:40SFO - HKG
Nonstop15h 40mUnited Airlines
Deal found 3/12£526
Tue 23/1215:30HKG - SFO
1 stop15h 20mEVA Air
Sun 4/112:00SFO - HKG
1 stop16h 50mEVA Air
Deal found 2/12£527

Find 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 5 December 2025.

Round-trip from

£456

One-way from

£311

Popular in

July

Cheapest in

September

Average price

£646
STARLUX Airlines
  • STARLUX Airlines
  • 23/1-31/1
  • 2 total stops
  • 42h 45m total
  • Hong Kong to San Francisco
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Vietnam Airlines
  • Vietnam Airlines
  • 20/1
  • 1 total stop
  • 38h 20m total
  • Hong Kong to San Francisco
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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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 5 December 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

Mon 19/1

00:40-14:00

1 stop29h 20m

San Francisco

Thu 29/1

23:50-22:40

1 stop30h 50m

£508

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Fri 23/1

00:40-14:00

1 stop29h 20m

San Francisco

Sat 24/1

23:50-22:40

1 stop30h 50m

£508

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Wed 21/1

00:40-14:00

1 stop29h 20m

San Francisco

Tue 27/1

23:50-22:40

1 stop30h 50m

£508

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Thu 12/3

00:40-15:00

1 stop29h 20m

San Francisco

Sat 21/3

23:50-22:40

1 stop31h 50m

£509

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Wed 11/3

00:40-15:00

1 stop29h 20m

San Francisco

Thu 19/3

23:50-22:40

1 stop31h 50m

£509

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Wed 11/3

00:40-15:00

1 stop29h 20m

San Francisco

Mon 23/3

23:50-22:40

1 stop31h 50m

£509

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Tue 10/3

00:40-15:00

1 stop29h 20m

San Francisco

Thu 19/3

23:50-22:40

1 stop31h 50m

£509

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sat 14/3

00:40-15:00

1 stop29h 20m

San Francisco

Sat 21/3

23:50-22:40

1 stop31h 50m

£509

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Thu 12/3

00:40-15:00

1 stop29h 20m

San Francisco

Thu 19/3

23:50-22:40

1 stop31h 50m

£509

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Wed 11/2

01:00-21:15

Nonstop12h 15m

San Francisco

Fri 20/2

11:25-19:00

Nonstop15h 35m

£525

Flights are sorted by cheapest return flights first.

Deals found on 3/12

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 28 November 2025.

Booking 35 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, September is the cheapest month in which you can book a flight from Hong Kong to San Francisco (average of £460). Flying from Hong Kong to San Francisco in July is currently the most expensive (average of £591). 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 5 December 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 evening tend to be the most expensive. A flight at midday could potentially save you up to 21% 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 4 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 £508, Asiana Airlines can have you in San Francisco from Hong Kong in 29h 20m. Hong Kong and San Francisco are separated by a distance of 6910 mi.

  • 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: American Airlines (88%), Cathay Pacific (88%), Malaysia Airlines( 88%).

  • 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, September is the cheapest month in which you can book a flight from Hong Kong to San Francisco (average of £460). Flying from Hong Kong to San Francisco in July is currently the most expensive (average of £591). 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
San Bruno
South San Francisco
Bodega Bay
Pacific Grove

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Hong Kong to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Hong Kong to Los Angeles flights

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?

Cheapflights helps you find that perfect flight to San Francisco from Hong Kong by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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.

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

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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