Cheapest airlines flights from Hong Kong to San Francisco

You can choose from 6 airlines that fly from Hong Kong to San Francisco, including United Airlines, Cathay Pacific, and STARLUX Airlines. United Airlines has lowest fares on this route.
United Airlines logo United Airlines
Cathay Pacific logo Cathay Pacific
STARLUX Airlines logo STARLUX Airlines
EVA Air logo EVA Air
Philippine Airlines logo Philippine Airlines
Japan Airlines logo Japan Airlines
Airlines are determined based on actual purchased flight tickets from Hong Kong to San Francisco according to previous 12 months data from Trip.com.

Search for direct flights from Hong Kong to San Francisco in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$526, and round-trip direct flights start at US$890.

Displayed flight fares from Hong Kong to San Francisco are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Hong Kong to San Francisco Flight Details

The distance between Hong Kong and San Francisco is about 11,105.34 km. The average flying time from Hong Kong to San Francisco is around 12 hours 34 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$388
Cheapest return ticket priceUS$693
Cheapest monthOctober
Peak season for travelJuly
Flight distance11,105.34 km
Average flight time12 hours 34 minutes
Popular airlineUnited Airlines
Flight statistics for the Hong Kong–San Francisco route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Hong Kong to San Francisco

Which month has the cheapest one-way flights from Hong Kong to San Francisco?

Average monthly one-way flight prices from Hong Kong to San Francisco, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Hong Kong to San Francisco is November, with an average price of US$587; while the month with the highest flight price is usually August, with an average price of up to US$873.

US$873
US$730
US$587
US$444
    Cheapest
  • US$703
    Jun
  • US$845
    Jul
  • US$873
    Aug
  • US$663
    Sep
  • US$600
    Oct
  • US$587
    Nov
  • US$666
    Dec
  • US$799
    Jan
  • US$616
    Feb
  • US$639
    Mar
  • US$719
    Apr
  • US$653
    May

Which month has the cheapest round-trip flights from Hong Kong to San Francisco?

The average price of round-trip flights from Hong Kong to San Francisco purchased by Trip.com users by month over the past 12 months.

Based on data from Trip.com, the lowest prices for round-trip flights from Hong Kong to San Francisco are found during September, with an average price of US$838. Conversely, the highest prices are found during August, with an average price of up to US$1,318.

US$1,318
US$1,078
US$838
US$598
    Cheapest
  • US$935
    Jun
  • US$1,233
    Jul
  • US$1,318
    Aug
  • US$838
    Sep
  • US$933
    Oct
  • US$1,009
    Nov
  • US$1,015
    Dec
  • US$1,238
    Jan
  • US$881
    Feb
  • US$1,039
    Mar
  • US$1,217
    Apr
  • US$1,267
    May

Frequently Asked Questions

  • What are the cheapest flights from Hong Kong to San Francisco (HKG-SFO)?

    Based on Trip.com data, China Airlines offers one-way fares as low as US$388 on Cheapest nonstop routes (e.g. HKG to SFO on Tue, Jun 16), while United Airlines offers Cheapest nonstop round-trips from US$693 departing on Thu, Jun 18 and returning on Sat, Jun 20.
  • At the moment, you can catch a nonstop flight from Hong Kong to San Francisco with the following airlines, including: United Airlines Cathay Pacific Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 12 hours 34 minutes to fly from Hong Kong to San Francisco.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hong Kong to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 28 flight per week flying from Hong Kong to San Francisco. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA862 (11:58)
  • To find best deals on flights from Hong Kong to San Francisco, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jun 16, with one-way flights priced at just US$388.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Francisco travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Hong Kong to San Francisco is October, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Hong Kong to San Francisco on June 13, 2026 with Philippine Airlines, with prices starting at US$617.
  • You can land at any one of the following hubs in San Francisco, with Hong Kong International Airport to San Francisco International Airport (HKG-SFO) is by far the most common option on this route: San Francisco International Airport (SFO).
  • The time difference between San Francisco and Hong Kong is 16h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

How to Find Cheap Flights from Hong Kong to San Francisco

Flights from Hong Kong to San Francisco are a popular route. Cathay Pacific, United Airlines, and American Airlines (codesharing with Cathay Pacific) are the main carriers, offering both nonstop and connecting services. San Francisco has only one airport—San Francisco Airport (San Francisco International Airport)—and all nonstop flights from Hong Kong land there. The average flight time from Hong Kong to San Francisco is 13 hours and 1 minute. Trip.com helps you search for and easily book cheap flights from Hong Kong to San Francisco, so you can head off on a self-guided San Francisco trip at the best price.

Airlines and Tickets from Hong Kong (HKG) to San Francisco (SFO)

On average, around 30 nonstop flights per week operate from Hong Kong to San Francisco, with nonstop service on this route provided by Cathay Pacific, American Airlines, and United Airlines.

Airlines flying from Hong Kong (HKG) to San Francisco International Airport (SFO)

Airline Type

Are there direct flights from Hong Kong (HKG) to San Francisco International Airport (SFO)?

Cathay Pacific Airways

Full-service airlines

Nonstop

United Airlines

Full-service airlines

Nonstop

American Airlines

Full-service airlines

Nonstop

Airport information for flights from Hong Kong (HKG) to San Francisco (SFO)

Hong Kong International Airport (HKG) and San Francisco International Airport (SFO) are the primary international aviation hubs for both cities. Hong Kong International Airport is located at Chek Lap Kok on Lantau Island, and its modern facilities and efficient operations make it one of the busiest airports in the world; San Francisco International Airport (SFO) is the largest international airport in the San Francisco Bay Area and Northern California, serving as an important gateway to and from the United States and connecting to major cities around the globe.

Hong Kong International Airport (HKG)

Hong Kong International Airport is Hong Kong’s only international airport and, since opening in 1998, has been one of the world’s busiest aviation hubs. Terminal 1 was built and put into service alongside the airport in 1998, while Terminal 2 began operation in 2007. Terminal 1 handles all international flights, serving over 220 destinations. The airport offers world-class facilities, with numerous duty-free shops, luxury brands, and cosmetics stores; plus a diverse range of dining options, free WiFi, charging stations, and multiple lounges to make your journey comfortable. From Hong Kong International Airport, you can easily fly to Japan, South Korea, the United Kingdom, the United States, Singapore, Thailand, and other popular countries and regions around the globe.

Getting from downtown to Hong Kong International Airport (HKG)

Hong Kong International Airport (HKG) offers a variety of transportation options that make it easy for travelers to get to and from the city. The fastest way from the city center to the airport is the Airport Express; in just 24 minutes you can reach Central (stopping at AsiaWorld-Expo Station, Tsing Yi Station, and Kowloon Station). Passengers flying with Cathay Pacific and Hong Kong Airlines can use in-town check-in and baggage drop at Hong Kong Station and Kowloon Station. Airport buses are another great-value, convenient choice, with late-night routes available, and are divided into A and E lines. A routes are the airport express buses: they run shorter routes, cost a bit more, but get you there faster—perfect for travelers who value efficiency. E routes are the budget buses: they cover longer routes but offer more affordable fares, ideal for travelers with time to spare.

Transportation options from downtown to Hong Kong International Airport

Time

Price

Pros

Airport Bus

Approximately 45 minutes (to Central)

USD 14.72

Affordable prices, extensive route coverage, perfect for travelers looking to save money

Airport Express

Direct in 24 minutes (to Central)

About USD 4.864

The fastest way—just 24 minutes from the airport to Central, perfect for travelers on a tight schedule.

Taxi

About 30 minutes (to Central)

About USD 38.4

Quick and convenient, especially great for travelers with lots of luggage or who prefer a private space

*Actual prices and times take precedence and may change without prior notice.

San Francisco Airport (SFO)

San Francisco International Airport (SFO) is a vital gateway to California’s San Francisco Bay Area, located about 21 kilometers south of San Francisco. It is one of the major international hubs on the U.S. West Coast. The airport has four main terminals, including three domestic terminals (T1, T2, T3) and one International Terminal (divided into sections A and G). T1 primarily serves domestic flights operated by Delta Air Lines and other carriers; T2 is the base for domestic flights by Alaska Airlines and American Airlines; T3 mainly serves United Airlines’ domestic flights. The International Terminal is among the largest in North America, featuring sections A and G, serving international flights and offering multiple airline lounges. The terminals are connected by the automated AirTrain system, making transfers easy for travelers.

From San Francisco Airport (SFO) to Downtown

You can reach downtown from San Francisco International Airport in a variety of ways.

Transportation Options

Duration

Fees

Pros

BART (San Francisco Bay Area Rapid Transit)

About 30 minutes

Adults US$1.34; children under 4 free

Head straight to the city's main destinations with no transfers, at affordable prices

Uber/Lyft

About 30 minutes

Fares vary by distance and are generally a bit pricier than BART.

Quick and convenient—go straight to your hotel or attractions

Airport Transfer Service

About 30 minutes

Prices vary by service and are usually a bit pricier than Uber/Lyft.

Private pick-up and drop-off, ideal for travelers with kids or older adults

Rent a car and drive yourself

-

Varies by car rental company and vehicle type.

Plan your itinerary freely, perfect for families or long trips

*Actual prices and times take precedence and may change without prior notice.

Airfare prices from Hong Kong to San Francisco

Airfare from Hong Kong to San Francisco varies depending on the season, flight times, airlines, and other factors. Generally, ticket prices are lower during the off-peak season (March), and they tend to rise during peak season (June). It’s a good idea to book in advance, as you can usually snag better prices. Trip.com offers more choices for flights to San Francisco, so you can lock in the best-value prices.

Flight time from Hong Kong (HKG) to San Francisco (SFO)

Flight duration and schedule from Hong Kong to San Francisco

Average flight time

13 hours 1 minute

Earliest flight

09:30 to 06:55

Latest flight

21:30⇒18:55

Lowest price for nonstop flights

USD 508

*Actual prices and times take precedence and may change without prior notice.

Things to Know When Flying from Hong Kong (HKG) to San Francisco (SFO)

Is there a time difference between Hong Kong and San Francisco?

Hong Kong and San Francisco have a 15-hour time difference (San Francisco is in the UTC-7 time zone, and Hong Kong is in the UTC+8 time zone), so be sure to factor this in when planning your trip.

When are the off-season and peak season for visiting San Francisco on your own?

San Francisco enjoys mild weather year-round, but the peak travel season is typically summer (June to August) and fall (September to November), when the weather is pleasant and perfect for outdoor activities. The off-season is winter (December to February), when there are fewer visitors and airfare prices may be more budget-friendly.

Which airlines fly from Hong Kong to San Francisco?

Cathay Pacific and United Airlines are the main carriers offering nonstop flights and high-quality onboard service. Other airlines, such as American Airlines and Delta Air Lines, among others, also offer connecting services.

When’s the cheapest time to book flights from Hong Kong to San Francisco?

We recommend booking 2 to 3 months in advance, avoiding summer break and long holiday weekends, and choosing weekday departures to more easily snag discounted fares. Steering clear of peak season (like June) usually means lower prices on Hong Kong to San Francisco flights.

How do you get from San Francisco Airport to downtown?

To get from San Francisco International Airport into the city, you can take BART, a taxi, or an airport bus. BART is a budget-friendly option, while taxis provide a more convenient service.

What attractions do you recommend for a self-guided trip to San Francisco?

San Francisco is home to many iconic sights, including the Golden Gate Bridge, the Palace of Fine Arts, and Fisherman’s Wharf. Beyond its landmarks, the city’s multicultural vibe and amazing food scene are major draws for travelers.

Which areas is the best to stay in on a self-guided trip to San Francisco?

San Francisco offers a wide range of places to stay in San Francisco. It’s best to pick the city center or areas with easy transit, such as Union Square or near Fisherman’s Wharf. These neighborhoods are well connected and full of amenities, making it simple for travelers to reach attractions all across the city.

Trip.com Airline Insights on Flights from Hong Kong to San Francisco

Which airline offers the cheapest direct flights from Hong Kong to San Francisco?

Data is based on the average price of all nonstop flights from Hong Kong to San Francisco on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Philippine Airlines provides the lowest-priced direct flights from Hong Kong to San Francisco, with fares starting at US$602.

US$427
US$602
US$778
US$954
US$1,129
Philippine Airlines
US$602
Philippine Airlines
STARLUX Airlines
US$676
STARLUX Airlines
China Airlines
US$681
China Airlines
EVA Air
US$754
EVA Air
United Airlines
US$853
United Airlines
Cathay Pacific
US$1,129
Cathay Pacific

Which airline operates the most flights from Hong Kong to San Francisco?

Total flights from Hong Kong to San Francisco across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Malaysia Airlines/American Airlines/Cathay Pacific/Miat Mongolian Airlines/United Airlines operates the most frequent flights from Hong Kong to San Francisco, with 15 flights per week.

15
Malaysia Airlines
15
Malaysia Airlines
American Airlines
15
American Airlines
Cathay Pacific
15
Cathay Pacific
Miat Mongolian Airlines
15
Miat Mongolian Airlines
United Airlines
15
United Airlines

How many flights fly from Hong Kong to San Francisco daily?

The data is based on the flight numbers for each day of the week from Hong Kong to San Francisco within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Hong Kong to San Francisco is the highest on Friday and the lowest on Monday/Tuesday/Wednesday/Thursday/Sunday.

50
45
40
35
Highest
40
Mon
40
Tue
40
Wed
40
Thu
50
Fri
48
Sat
40
Sun

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.