HKG - SFO

Find cheap flights from Hong Kong to San Francisco

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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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Cheap Flight Deals 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 return 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.

Recent return flight deals from Hong Kong to San Francisco

KAYAK's recommended return flight deals from the most popular airlines that fly from Hong Kong to San Francisco.
Discover the best prices for you by selecting your travel dates on KAYAK.
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American Airlines Logo
HKG-SFO
12h 50mdirect
American Airlines Logo
SFO-HKG
14h 05mdirect
American Airlines
Find Deal
Cathay Pacific Logo
HKG-SFO
12h 50mdirect
Cathay Pacific Logo
SFO-HKG
14h 05mdirect
Cathay Pacific
Find Deal
Malaysia Airlines Logo
HKG-SFO
12h 50mdirect
Malaysia Airlines Logo
SFO-HKG
14h 05mdirect
Malaysia Airlines
Find Deal
United Airlines Logo
HKG-SFO
12h 35mdirect
United Airlines Logo
SFO-HKG
14h 50mdirect
United Airlines
Find Deal
MIAT Mongolian Logo
HKG-SFO
12h 50mdirect
MIAT Mongolian Logo
SFO-HKG
14h 05mdirect
MIAT Mongolian
Find Deal

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 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 March, where tickets cost S$ 1,063 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is S$ 1,881 and S$ 1,842 respectively.

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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

February

High season

September
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 11% 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 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.

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 AirlinesHKG-SFOFeb 2025
Fly United. Give yourself a lot of time to get to the gate
Verified travelerFlew with United AirlinesHKG-SFODec 2024
be careful of short connection time when reaching US.
Verified travelerFlew with Cathay PacificHKG-SFOSept 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 AirlinesHKG-SFOSept 2024
Double check your boarding information in airport in time, like boarding gate, or boarding time, etc. because they might be updated.
yiFlew with Cathay PacificHKG-SFOAug 2024
Singapore airline provides the best service I believe.
Verified travelerFlew with United AirlinesHKG-SFOMar 2024
Fly an Asian carrier. Cathay , Jal , Ana anyone but not United or a U.S. carrier .

FAQs for booking flights from Hong Kong to San Francisco

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

    Air Canada, Thai Airways, and Cathay Pacific offer 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Hong Kong and San Francisco, with oneworld being the most commonly used for this 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.

See more FAQs

Prefer to fly 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

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Tuesday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Wednesday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Thursday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Friday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Saturday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Sunday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

See more direct flights

Direct returns

San Francisco to Hong Kong Intl

Monday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Tuesday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Wednesday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Thursday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Friday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Saturday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

Sunday

American Airlines, Cathay Pacific, MIAT Mongolian, +2 more

American Airlines, Cathay Pacific, +3 more

See more direct flights
See more direct flights

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

Information on your arrival and departure airports

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