HKG - SFO

Find cheap flights from Hong Kong to San Francisco

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hong Kong to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hong Kong to San Francisco, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
Multiple Airlines
Sat 24/1
HKG - SFO • multi-stop
Cheapest one-way flights
Multiple Airlines
Sat 24/1
HKG - SFO • multi-stop
Our travellers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Use BART from SFO for efficient city access.
Double-check boarding info on United for updates.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 2% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 16% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hong Kong to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hong Kong to San Francisco

Multiple Airlines Logo
HKG
-
SFO
17896 kmmulti-stop
Multiple Airlines Logo
SFO
-
HKG
17896 kmmulti-stop
Multiple 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.

What’s the cheapest day of the week to fly from Hong Kong to San Francisco?

The average price of all round-trip flights from Hong Kong to San Francisco clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to San Francisco on a Saturday and more expensive on a Monday. On your return trip to Hong Kong, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hong Kong to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Hong Kong to San Francisco is September, where tickets cost C$ 960 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is C$ 1,495 and C$ 1,495 respectively.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of C$ 1,064, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Hong Kong to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

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 2% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Hong Kong to San Francisco

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

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

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing 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 favorite 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. She will always choose the window seat.

Good to know

Low seasonNovember
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.

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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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.

Flights from Hong Kong to San Francisco: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Hong Kong to San Francisco 
RamFlew with United Airlines
HKG
-
SFO
Feb 2025
Fly United. Give yourself a lot of time to get to the gate
Verified travelerFlew with United Airlines
HKG
-
SFO
Dec 2024
be careful of short connection time when reaching US.
Verified travelerFlew with Cathay Pacific
HKG
-
SFO
Sep 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
HKG
-
SFO
Sep 2024
Double check your boarding information in airport in time, like boarding gate, or boarding time, etc. because they might be updated.

FAQs for booking flights from Hong Kong to San Francisco

  • Which airlines offer Wi-Fi service onboard planes from Hong Kong to San Francisco?

    Only Thai Airways offers inflight Wi-Fi service on the Hong Kong to San Francisco flight route.

  • 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.

  • Which airline alliances offer flights from Hong Kong to San Francisco?

    Star Alliance is the only airline alliance operating flights between Hong Kong and San Francisco.

  • 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 round-trip 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.

Prefer to fly direct from Hong Kong to San Francisco?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Hong Kong Intl to San Francisco.
Find which airlines fly direct from Hong Kong Intl Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Hong Kong Intl to San Francisco

Monday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Tuesday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Wednesday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Thursday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Friday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Saturday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Sunday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

See more nonstop flights

Direct returns

San Francisco to Hong Kong Intl

Monday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Tuesday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Wednesday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Thursday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Friday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Saturday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

Sunday

Cathay Pacific,United Airlines

Cathay Pacific,United Airlines

See more nonstop flights

Reviews of the top airline flying from Hong Kong to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Hong Kong to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hong Kong to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9194 reviews
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

2.0 MediocreAnonymous, Jan 2026
MEX - SFO
Read more United Airlines reviews

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

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

Information on your arrival and departure airports