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HK$3,391+ Cheap flights to San Francisco

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 7-11. Fares are subject to change and may not be available on all flights or dates of travel.
— SFO
7 Jul — 14 Jul1
1 adult

Flights to San Francisco in 2025

Find the latest flights to San Francisco in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 2 July 2025.

Return from

HK$5,746

One-way from

HK$3,391

Popular in

August

Cheapest in

March

Average price

HK$9,443

Good round-trip deal

HK$8,275 or less

Good one-way deal

HK$3,730 or less
Air Canada
  • Air Canada
  • 17-9-3-6
  • 4 total stops
  • 78h 00m total
  • Hong Kong to San Francisco
星宇航空
  • 星宇航空
  • 7-11
  • 1 total stop
  • 15h 15m total
  • Hong Kong to San Francisco
Highest demand for flights based on searches. 17% potential increase in price (HK$12,077 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (HK$2,233 potential savings vs. average return price).
Average for return flights in July 2025
Price to beat on a round-trip flight from Hong Kong Intl to San Francisco.
Price to beat on a one-way flight from Hong Kong Intl to San Francisco.

Find flight deals to San Francisco

Cheapest flights to San Francisco
Explore the most affordable flight options available to San Francisco. Find the lowest fares based on data from user searches, with prices last updated on 2 July 2025.

Wed 17-918:00HKG - SFO
2 stops42h 25mAir Canada
Wed 3-613:30SFO - HKG
2 stops35h 35mAir Canada
Deal found 30-6HK$5,746
Thu 25-915:25HKG - SFO
1 stop15h 35mEVA Air
Thu 9-1012:30SFO - HKG
1 stop16h 25mEVA Air
Deal found 1-7HK$5,754
Sun 5-1020:10HKG - SFO
1 stop14h 45mChina Airlines
Tue 23-601:05SFO - HKG
1 stop18h 00mChina Airlines
Deal found 30-6HK$5,777
Mon 6-1000:50HKG - SFO
Nonstop12h 50mCathay Pacific
Wed 5-1122:55SFO - HKG
Nonstop15h 25mCathay Pacific
Deal found 30-6HK$5,809
Tue 16-1213:20HKG - SFO
1 stop22h 55mPhilippine Airlines
Sun 15-223:25SFO - HKG
1 stop20h 55mPhilippine Airlines
Deal found 30-6HK$5,864
Mon 20-1022:30HKG - SFO
Nonstop12h 40mUnited Airlines
Fri 7-1111:40SFO - HKG
Nonstop15h 40mUnited Airlines
Deal found 1-7HK$5,919
Thu 18-911:20HKG - SFO
1 stop24h 10m星宇航空
Thu 4-600:50SFO - HKG
1 stop18h 05m星宇航空
Deal found 30-6HK$6,115
Sat 6-920:10HKG - SFO
1 stop15h 20mMultiple Airlines
Sat 25-1019:54SFO - HKG
2 stops23h 16mMultiple Airlines
Deal found 30-6HK$6,138
Fri 5-900:45HKG - SFO
2 stops34h 12mDelta
Sat 8-1106:05SFO - HKG
2 stops25h 05mDelta
Deal found 30-6HK$6,602
Wed 2-713:55HKG - SFO
1 stop34h 10mChina Eastern
Sat 5-712:00SFO - HKG
1 stop33h 45mChina Eastern
Deal found 30-6HK$6,617
Tue 7-1014:45HKG - SFO
1 stop16h 45mANA
Tue 4-1100:20SFO - HKG
1 stop20h 35mANA
Deal found 30-6HK$6,641
Mon 20-1000:45HKG - SFO
1 stop24h 55mKorean Air
Thu 13-1111:40SFO - HKG
1 stop19h 30mKorean Air
Deal found 1-7HK$6,798

Cheapflights Fare Finder

Locate flights to San Francisco that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 2 July 2025.
Use the filters below to find and compare flights to San Francisco that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Wed 17-9

18:00-21:25

2 stops42h 25m

San Francisco

Wed 3-6

13:30-16:05

2 stops35h 35m

HK$5,746

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Thu 25-9

15:25-16:00

1 stop15h 35m

San Francisco

Thu 9-10

12:30-19:55

1 stop16h 25m

HK$5,754

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sun 5-10

20:10-19:55

1 stop14h 45m

San Francisco

Tue 23-6

01:05-10:05

1 stop18h 00m

HK$5,777

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 6-10

00:50-22:40

Nonstop12h 50m

San Francisco

Wed 5-11

22:55-06:20

Nonstop15h 25m

HK$5,809

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Tue 16-12

13:20-20:15

1 stop22h 55m

San Francisco

Sun 15-2

23:25-12:20

1 stop20h 55m

HK$5,864

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Mon 20-10

22:30-20:10

Nonstop12h 40m

San Francisco

Fri 7-11

11:40-19:20

Nonstop15h 40m

HK$5,919

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Thu 18-9

11:20-20:30

1 stop24h 10m

San Francisco

Thu 4-6

00:50-09:55

1 stop18h 05m

HK$6,115

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Sat 6-9

20:10-20:30

1 stop15h 20m

San Francisco

Sat 25-10

19:54-10:10

2 stops23h 16m

HK$6,138

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Fri 5-9

00:45-19:57

2 stops34h 12m

San Francisco

Sat 8-11

06:05-23:10

2 stops25h 05m

HK$6,602

Hong KongSan Francisco

HKG - SFO

HKGSFO

Hong Kong Intl

Tue 7-10

14:45-16:30

1 stop16h 45m

San Francisco

Tue 4-11

00:20-12:55

1 stop20h 35m

HK$6,641

Flights are sorted by cheapest return flights first.

Deals found on 29-6

Showing 1-10 of 16 results
1
2

Best time to book a flight to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco 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 to San Francisco

When is the best time to book a flight 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 27 June 2025.

The best time to book flights to San Francisco is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to San Francisco?

On average, a flight from Hong Kong to San Francisco takes 12 hours 5 minutes. Flights to San Francisco from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to San Francisco?

Use this chart to determine the cheapest time to fly return from Hong Kong to San Francisco. Price data was last updated on 29 June 2025.

Users looking for the lowest fares to San Francisco should consider flying on Monday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday evenings, when prices are usually at their highest.

Weekly flight availability to San Francisco

The most flights from Hong Kong to San Francisco are scheduled on a Tuesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

What are the cheapest airlines that fly to San Francisco?

The cheapest airlines flying from Hong Kong to San Francisco are Philippine Airlines, Asiana Airlines and 星宇航空.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 2 July 2025.
Check out reviews from past customers who have flown 星宇航空, EVA Air, andKorean Air to the United States to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
星宇航空
9.1
Wonderful

Entertainment

9.0

Food

8.9

Crew

9.3

Boarding

9.0

Overall

9.1

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.1
Wonderful
星宇航空
9.1
Wonderful

Entertainment

9.0

Food

8.9

Crew

9.3

Boarding

9.0

Overall

9.1

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.1
Wonderful

Entertainment

9.0

Food

8.9

Crew

9.3

Boarding

9.0

Overall

9.1

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.1
Wonderful

Entertainment

9.0

Food

8.9

Crew

9.3

Boarding

9.0

Overall

9.1

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
8.4
Very Good
星宇航空
9.1
Wonderful

Entertainment

9.0

Food

8.9

Crew

9.3

Boarding

9.0

Overall

9.1

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
星宇航空
9.1
Wonderful

Entertainment

9.0

Food

8.9

Crew

9.3

Boarding

9.0

Overall

9.1

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

FAQs about flying to San Francisco

San Francisco climate

San Francisco is surprisingly chilly, even in summer. Summer temperatures occasionally go above 21 (Celsius) with a morning fog over the city. Due to the fog, the city rarely sees more than a few hot days in a row, but just a few kilometres inland it’s clear, hot, and dry. Autumn has clear skies and temperatures in the mid-20s. Winter temperatures are usually in the teens and rarely go below freezing. But the winter rain combined with ocean breezes can make it feel cold. San Francisco is a popular holiday destination and has visitors, festivals, and events year-round. There’s always something going on.

Getting around San Francisco

Renting a car in San Francisco is more trouble than it’s worth. The city is covered with steep hills and one-way streets, traffic backups can be a nightmare and parking is scarce and expensive. You’ll only need a car if you’re heading out of town. It’s easy to get around on foot and the public transport system can get you anywhere else. 

San Francisco’s main transport network is the San Francisco Municipal Railway (Muni). It has 100 bus lines with electric trolley buses and the famous historic cable cars. Riding one of the cable cars from Nob Hill down to Fisherman’s Wharf is an integral part of the San Francisco tourist experience. Check out the Muni Passports that offer unlimited rides for several days. 

Biking is a popular way to get around, but you’ll have to steel yourself to get up and over some of the hills. The easiest way to get a cab is calling ahead or lining up for one at a hotel stand. To get out of the city, you can hop aboard the Bay Area Rapid Transit (BART), the fast and efficient subway linking the city to the East Bay. You can also catch one of the many ferries sailing for Sausalito, Larkspur and Tiburon.

What is good to know if travelling to San Francisco?

  • San Francisco is a city for walking. The promenade between Crissy Field and Fort Point at the foot of the Golden Gate Bridge has some of the best views of the bridge, bay, and city. Take a walk across the Golden Gate Bridge, even just part way, for an exhilarating San Francisco experience. In town, climb the stairs of Telegraph Hill to Coit Tower, a monument to the city’s volunteer firefighters, and a spectacular view of the city and bay.
  • Golden Gate Park is the biggest and loveliest expanse of green in San Francisco and is filled with gardens, lakes, sporting facilities, concerts, wildlife exhibits, and museums. On Sundays, the main drive closes to traffic and opens to joggers, cyclists, roller-bladers, and strollers. Even when filled with people, the park doesn’t feel crowded and you can always find a secluded space.
  • San Francisco has a wealth of freebies and free exhibits; some are free on certain days and some are always free. Here’s a starter list: the Cable Car Museum, Creativity Explored, Fisherman’s Wharf’s Musée Mécanique, Mission Dolores, Precita Eyes Mural Arts and Visitors Centre, the Randall Museum, galleries at the San Francisco Art Institute, the Tattoo Art Museum, and the Wells Fargo Bank History Museum.
  • Alcatraz sends chills up many a tourist’s back. More than just the prison, the island was the location of the first US fort and lighthouse on the West Coast. There are gardens, tide pools, and bird colonies to explore. Make your reservations in advance, even online before you arrive, as the tours fill quickly. If you’re there at the end of September, watch or join the Alcatraz Invitational Swim and see if you can swim from the Rock to shore.
  • Fisherman’s Wharf, Pier 39, and Ghirardelli Square cover several blocks along the waterfront and are probably the most popular sights. But the city’s neighbourhoods show you the true spirit of San Francisco, particularly the Mission’s Latin shops and restaurants, North Beach’s shopping and Italian restaurants, Pacific Heights’s extraordinary mansions and bay views, and Chinatown’s sights, herbal shops, and a tour and free cookie at the Golden Gate Fortune Cookies Co.
  • The Castro district is predominately gay and is home to many of the city’s gay-owned businesses. The area has a neighbourhood feel, is safe, and has lots of stylish shops, restaurants, bars, and restored Victorian houses. The Castro is busy during the day and really comes alive at night. There are events and festivals year-round, including the city’s longest running street fair and a Hallowe’en festival bigger and more extravagant than any other.
  • Russian Hill has steep streets, lush gardens, and homes occupied by both the wealthy and bohemian. Lombard Street, dubbed “the crookedest street in the world,” has such a steep decline that it has to zigzag, with eight switchbacks, down Russian Hill. Lined with Victorian mansions and some of the most expensive real estate in the city, Lombard is popular with tourists. Traffic is heavy as they queue up at the top to drive down, then gather at the bottom to take pictures.
  • Nob Hill is a genteel, well-heeled district originally settled by railroad barons and gold-rush kings whose mansions are now luxury hotels. For something a little different, take an evening Vampire Tour of Nob Hill.
  • The wine country is about an hour from San Francisco. Most of California’s wineries are in Napa Valley and Sonoma Valley and offer tours, tastings, restaurants, and spas. Napa Valley has more wineries and a higher volume of tourism, and Sonoma Valley is lower key with family-run wineries and a relaxed ambience.
  • For discounts on attractions, transportation, tours, restaurants, and entertainment, check out the San Francisco City Pass and the Go San Francisco Card and see if either one fits your itinerary.
  • When is the best time to fly to San Francisco?

    Peak season: San Francisco’s peak season is the summer when most of the tourists come to visit. Off season: Winter is the low season for flights to San Francisco; however, this is when the ballet and opera seasons are in full swing. Shoulder season: Mid-September to mid-November is the best time to visit San Francisco. Most of the tourists have gone home, and San Francisco is usually warm and sunny.

  • What airport do you fly into for flights to San Francisco?

    For a flight to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 19.0 km from the centre of the city. SFO handles an average of 12 flights per day from Hong Kong. You should also have a few airline options to choose from. 9 airlines have flights to San Francisco from Hong Kong.

  • Can I find cheaper flights to San Francisco if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to San Francisco on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to San Francisco?

    Based on reviews from Cheapflights users, Philippine Airlines is rated the highest out of the airlines that fly to San Francisco.

  • What is the cheapest airport to fly to in San Francisco?

    San Francisco is currently the cheapest airport to fly to in San Francisco. One-way flights to San Francisco typically cost HK$386, while return flights cost around HK$1,465.

  • How much is a return flight to San Francisco?

    A return flight to San Francisco will typically cost around HK$195, however they can be found for as little as HK$187.

  • Does San Francisco have rental cars?

    Yes. Those touching down at San Francisco can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to San Francisco?

    Yes. San Francisco has hotels nearby for those requiring accommodations. Grand Hyatt At Sfo is the closest property to San Francisco (1.6 km away from San Francisco).

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Sunnyvale
Newark
Rancho Cordova
Half Moon Bay
San Mateo
Burlingame
Mountain View
Seaside
San Ramon
Milpitas

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