How long does a flight from Hong Kong to San Francisco take?

A direct flight to San Francisco will take on average 12h 25m to travel the 6,910 miles flying distance from Hong Kong.

How many flights are there between Hong Kong and San Francisco per day?

Each day, there are 4 direct flights that take off from Hong Kong and land in San Francisco, with an average flight time of 12h 36m. The most common departure time is 01:00 and most flights take off at night. Each week, there are 28 flights and there are the same number of flights each day (4).

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

In the last 5 days, the lowest price for a flight from Hong Kong to San Francisco was £350 for a one-way ticket and £557 for a return.

What’s the earliest departure time from Hong Kong to San Francisco?

Early birds can take the earliest flight from Hong Kong at 01:10 and will be landing in San Francisco at 22:40.

What’s the latest departure time from Hong Kong to San Francisco?

If you prefer to fly at night, the latest flight from Hong Kong to San Francisco jets off at 22:30 and lands at 20:10.

Which aircraft models fly most regularly from Hong Kong to San Francisco?

The Boeing 777-300ER is the aircraft model that flies most regularly on the Hong Kong to San Francisco flight route.

On which days can I fly direct from Hong Kong to San Francisco?

There are direct flights from Hong Kong to San Francisco on a daily basis.

How does KAYAK find such low prices on flights from Hong Kong to San Francisco?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Hong Kong to San Francisco.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Hong Kong to San Francisco?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Hong Kong is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Hong Kong to San Francisco?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Francisco with an airline and back to Hong Kong with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Hong Kong to San Francisco?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Hong Kong up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

How often are flights from Hong Kong to San Francisco delayed?

Weekly flights between Hong Kong and San Francisco historically see delays in approximately 15% of cases , with the average delay over the past year being 118 minutes.

Which airline has the best punctuality record on Hong Kong to San Francisco flights?

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 15% of their flights encountering any delays.

What day of the week experiences the fewest flight delays on this route?

Statistically, Wednesday is the day of the week with the fewest delays on this flight route, while Saturday has typically experienced more delays than other days.

What is the most punctual flight time for Hong Kong to San Francisco flights?

Typically, flights leaving at night tend to face fewer delays, whereas flights in the morning have historically encountered delays more often.

Which cabin class options are there for flights between Hong Kong and San Francisco?

There are 2 cabin class options for the route. These are Business and Economy . Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Which airlines provide the cheapest flights from Hong Kong to San Francisco?

In the past 5 days, the cheapest return tickets from Hong Kong to San Francisco were found on Delta (£557) and Korean Air (£560).

£350 CHEAP FLIGHTS from Hong Kong to San Francisco (HKG - SFO)

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Cheapest return fare

£557

Typical prices: £499-£687

Delta

Thu 10/12Thu 21/1

HKG - SFO • 2 stops

Cheapest direct flights

£590

Typical prices: £560-£776

United Airlines

Wed 28/10Fri 6/11

HKG - SFO • Direct

Advice from real travellers

AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.

For Cathay Pacific, book direct; third-party apps may not show itinerary details.

On United, recheck gate updates and bring snacks; cabins can feel cold.

Expert advice

Direct flights

Every day

You can fly direct with Cathay Pacific and United Airlines. Average duration is 12h 36m

Direct flights

Avoid delays

United Airlines

Most punctual • 85% on-time

Night flights

Best time • Fewest delays

Insights

When to book

2 weeks

in advance

Our data shows that travellers who book at least 2 weeks in advance save around 10% compared to booking last minute.

Insights

When to travel

January

Cheapest • 14% price drop

September

Most popular

Good to know

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to San Francisco!

Flight Deals

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

Direct

Recent return flight deals from Hong Kong to San Francisco

Thu, 10 Dec - Thu, 21 Jan

12:35 - 17:16HKG Hong Kong Intl-SFO San Francisco

20h 41m2 stops Incheon Intl Seattle/Tacoma Intl

16:15 - 07:40SFO San Francisco-HKG Hong Kong Intl

23h 25m1 stop Los Angeles

£557Delta

Thu, 10 Dec - Thu, 21 Jan

10:45 - 21:26HKG Hong Kong Intl-SFO San Francisco

26h 41m1 stop Los Angeles

16:15 - 07:40SFO San Francisco-HKG Hong Kong Intl

23h 25m1 stop Los Angeles

£558Delta

Thu, 19 Nov - Thu, 3 Dec

10:45 - 13:52HKG Hong Kong Intl-SFO San Francisco

19h 07m1 stop Los Angeles

14:55 - 07:40SFO San Francisco-HKG Hong Kong Intl

24h 45m1 stop Los Angeles

£559Delta

Tue, 13 Oct - Thu, 19 Nov

17:55 - 10:40HKG Hong Kong Intl-SFO San Francisco

31h 45m1 stop Incheon Intl

11:45 - 23:10SFO San Francisco-HKG Hong Kong Intl

19h 25m1 stop Incheon Intl

£560Korean Air

Tue, 17 Nov - Tue, 8 Dec

00:55 - 20:17HKG Hong Kong Intl-SFO San Francisco

35h 22m2 stops Incheon Intl Seattle/Tacoma Intl

06:00 - 23:10SFO San Francisco-HKG Hong Kong Intl

25h 10m2 stops Seattle/Tacoma Intl Incheon Intl

£563Delta

Mon, 28 Sep - Tue, 13 Oct

09:25 - 13:25HKG Hong Kong Intl-SFO San Francisco

19h 00m1 stop Los Angeles

05:50 - 22:45SFO San Francisco-HKG Hong Kong Intl

25h 55m2 stops Salt Lake City Incheon Intl

£564Delta

Sun, 27 Sep - Thu, 1 Oct

22:30 - 20:10HKG Hong Kong Intl-SFO San Francisco

12h 40mdirect

05:00 - 18:30SFO San Francisco-HKG Hong Kong Intl

22h 30m2 stops Denver Intl Los Angeles

£567United Airlines

Sat, 26 Sep - Mon, 12 Oct

22:30 - 20:10HKG Hong Kong Intl-SFO San Francisco

12h 40mdirect

07:00 - 18:30SFO San Francisco-HKG Hong Kong Intl

20h 30m1 stop Los Angeles

£570United Airlines

Sun, 27 Sep - Mon, 12 Oct

11:45 - 09:30HKG Hong Kong Intl-SFO San Francisco

12h 45mdirect

18:35 - 05:40SFO San Francisco-HKG Hong Kong Intl

44h 05m2 stops Seattle/Tacoma Intl Los Angeles

£571United Airlines

Sun, 27 Sep - Wed, 30 Sep

11:30 - 21:10HKG Hong Kong Intl-SFO San Francisco

24h 40m1 stop Manila Ninoy Aquino Intl

00:30 - 10:05SFO San Francisco-HKG Hong Kong Intl

18h 35m1 stop Manila Ninoy Aquino Intl

£576Philippine Airlines

Recent last minute flight deals from Hong Kong to San Francisco

Thu, 17 Sep - Tue, 22 Sep

12:20 - 20:18HKG Hong Kong Intl-SFO San Francisco

22h 58m2 stops Incheon Intl Seattle/Tacoma Intl

19:19 - 22:45SFO San Francisco-HKG Hong Kong Intl

36h 26m2 stops Salt Lake City Incheon Intl

£563Delta

Fri, 18 Sep - Mon, 7 Dec

11:45 - 09:30HKG Hong Kong Intl-SFO San Francisco

12h 45mdirect

22:50 - 19:15SFO San Francisco-HKG Hong Kong Intl

28h 25m1 stop Los Angeles

£567United Airlines

Sun, 20 Sep - Thu, 10 Dec

12:40 - 19:42HKG Hong Kong Intl-SFO San Francisco

22h 02m2 stops Los Angeles Seattle/Tacoma Intl

11:45 - 19:20SFO San Francisco-HKG Hong Kong Intl

15h 35mdirect

£571United Airlines

Sun, 20 Sep - Wed, 9 Dec

11:45 - 09:30HKG Hong Kong Intl-SFO San Francisco

12h 45mdirect

11:45 - 19:20SFO San Francisco-HKG Hong Kong Intl

15h 35mdirect

£591United Airlines

Sun, 20 Sep - Wed, 9 Dec

12:40 - 17:42HKG Hong Kong Intl-SFO San Francisco

20h 02m1 stop Los Angeles

23:15 - 06:45SFO San Francisco-HKG Hong Kong Intl

15h 30mdirect

£595United Airlines

Fri, 18 Sep - Fri, 25 Sep

11:45 - 09:30HKG Hong Kong Intl-SFO San Francisco

12h 45mdirect

13:50 - 05:40SFO San Francisco-HKG Hong Kong Intl

24h 50m1 stop Los Angeles

£605United Airlines

Fri, 18 Sep - Sat, 26 Sep

15:25 - 16:10HKG Hong Kong Intl-SFO San Francisco

15h 45m1 stop Taipei City Taiwan Taoyuan Intl

13:00 - 19:55SFO San Francisco-HKG Hong Kong Intl

15h 55m1 stop Taipei City Taiwan Taoyuan Intl

£607EVA Air

Fri, 18 Sep - Tue, 8 Dec

22:30 - 20:10HKG Hong Kong Intl-SFO San Francisco

12h 40mdirect

06:15 - 07:00SFO San Francisco-HKG Hong Kong Intl

32h 45m2 stops Denver Intl Los Angeles

£609United Airlines

Sun, 20 Sep - Thu, 10 Dec

14:35 - 09:35HKG Hong Kong Intl-SFO San Francisco

34h 00m1 stop Tokyo Haneda

07:00 - 05:45SFO San Francisco-HKG Hong Kong Intl

30h 45m2 stops Los Angeles Tokyo Haneda

£612United Airlines

Sun, 20 Sep - Thu, 10 Dec

12:40 - 06:41HKG Hong Kong Intl-SFO San Francisco

33h 01m2 stops Los Angeles Denver Intl

11:45 - 19:20SFO San Francisco-HKG Hong Kong Intl

15h 35mdirect

£613United Airlines

Booking Insights

KAYAK’s insights & trends for Hong Kong to San Francisco flights

Get data-powered insights and trends into flights from Hong Kong to San Francisco to help you find the cheapest flights, the best time to fly and much more.

Prices

Airlines

Delays

How much is a return flight from Hong Kong to San Francisco?

Flight prices are typical for this route right now.

Flights to San Francisco from Hong Kong usually cost between £557 and £656 in October.
The lowest price found in the past 5 days was £557 on Delta (27 Oct–16 Nov).

What is the cheapest month to fly from Hong Kong to San Francisco?

The cheapest month for flights from Hong Kong to San Francisco is January, where tickets cost £520 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £824 and £785 respectively.

Can I save money by flying with a stopover from Hong Kong to San Francisco?

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £658 on average.

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

To get a below average price on the flight from Hong Kong to San Francisco, you should book around 2 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Find deals

Expert advice

Our travel experts

Robert Schrader

Expert on HKG

One of the web's original travel bloggers, Robert launched his first site, Leave Your Daily Hell, in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Low season	April
High season	September
Cheapest flight	£350

Best time to beat the crowds (9% less expensive on average)

Most popular time to fly and prices are also 2% lower on average.

Flight from Hong Kong to San Francisco

When to book flights from Hong Kong to San Francisco

Are your dates flexible? Find out the best times to travel from Hong Kong to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

NoelFlew with Cathay Pacific-Mar 2026

Baggage handilng make sure to report any issues, like lost or damage immidiately, even if you miss your connecting flight , they will reschedule you, but if you have a fixed schedule, report as soon as possible , happend to my recent flight march 24,2026

KaushalendraFlew with American Airlines-Apr 2026

Don’t book via third party apps for Cathay Pacific flights, they don’t recognize the itinerary and won’t be able to even view details like airport terminals or gate numbers

Verified travelerFlew with United Airlines-Feb 2026

Prepare to bring your own food & snacks on board to eat, food on plane sucks, very cold on plane

RamFlew with United Airlines-Feb 2025

Fly United. Give yourself a lot of time to get to the gate

Verified travelerFlew with United Airlines-Dec 2024

be careful of short connection time when reaching US.

Verified travelerFlew with Cathay Pacific-Sept 2024

Get there earlier if you are a transit passenger, there are stores and restaurants but we flew in almost midnight and most stores were closed. Be your own advocate and look around what other passengers are doing!

Verified travelerFlew with United Airlines-Sept 2024

Double check your boarding information in airport in time, like boarding gate, or boarding time, etc. because they might be updated.

What is the cheapest flight from Hong Kong to San Francisco?
In the last 5 days, the lowest price for a flight from Hong Kong to San Francisco was £350 for a one-way ticket and £557 for a return.
Which aircraft models fly most regularly from Hong Kong to San Francisco?
The Boeing 777-300ER is the aircraft model that flies most regularly on the Hong Kong to San Francisco flight route.
On which days can I fly direct from Hong Kong to San Francisco?
There are direct flights from Hong Kong to San Francisco on a daily basis.
How does KAYAK find such low prices on flights from Hong Kong to San Francisco?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Hong Kong to San Francisco.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Hong Kong to San Francisco?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Hong Kong is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Hong Kong to San Francisco?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Francisco with an airline and back to Hong Kong with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Hong Kong to San Francisco?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Hong Kong up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Direct departures

Hong Kong Intl to San Francisco

Monday