Cheap Flights from Hong Kong Intl to San Francisco International

Compare Hong Kong Intl to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Hong Kong Intl to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Hong Kong Intl to San Francisco International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Hong Kong Intl to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Hong Kong Intl to San Francisco International flights are currently cheapest in September.

Direct flights from Hong Kong Intl to San Francisco International

Hong Kong Intl to San Francisco International: Alternative routes

Compare routes from Hong Kong Intl to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Hong Kong to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundRs108,815
Cheapest month to flySeptember
Average flight time12 hrs, 32 mins
Most popular airlineMalaysia Airlines
Average flights per week103

Finding cheap flights from Hong Kong Intl to San Francisco International: Frequently asked questions

The best price we found for a return flight from Hong Kong Intl to San Francisco International is Rs181,410. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
12 hours and 32 minutes is the average flight time from Hong Kong Intl to San Francisco International.
Malaysia Airlines, Cathay Pacific and American Airlines fly direct from Hong Kong Intl to San Francisco International.
As of August 2025, there are 103 flights per week flying from Hong Kong Intl to San Francisco International.
The cheapest month to fly from Hong Kong Intl to San Francisco International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Hong Kong Intl Airport to San Francisco International Airport on Friday, 5 September 2025.
Yes – the average flight time is 12 hours and 32 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Asiana Airlines and Cathay Pacific offer the cheapest flight tickets to San Francisco International.

Flying from Hong Kong International Airport (HKG) to San Francisco International Airport (SFO): what you need to know

  • Jump on a direct flight from Hong Kong International Airport to San Francisco International Airport and you'll be travelling for an average of 12 hours 35 minutes.

  • The timezone in San Francisco is UTC-7, which is 15 hours behind Hong Kong.

  • Flights from HKG to SFO start at 00:50 — the first with Cathay Pacific. The last departure is at 22:30 with United Airlines. Overall, there are 43 weekly Hong Kong International Airport to San Francisco International Airport flights.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to catch your HKG to SFO flight.

  • You can expect longer lines in popular months like April. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.

  • Cathay Pacific is your ticket to exploring San Francisco (and maybe even some other great parts of United States!). Check out the direct flights from Hong Kong International Airport to San Francisco International Airport offered by this popular airline.

  • The airline with the highest booking volume on this route is Cathay Pacific.

  • Cathay Pacific ranks as the leading on-time carrier for HKG to SFO flights, with 93.46% of its services reaching their destination on schedule.

  • We make it a cinch to book a flight with a stopover. To see all your options for tickets from Hong Kong International Airport to San Francisco International Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to tour the city of your choice. Popular stopovers between HKG and SFO include:

    • Taiwan Taoyuan International Airport

    • Narita International Airport

    • Haneda Airport

How to find the cheapest flights from Hong Kong International Airport (HKG) to San Francisco International Airport (SFO)

  • The lowest price we've seen for a one-way Hong Kong International Airport to San Francisco International Airport flight is Rs108,815. A return ticket right now is Rs181,410. Depending on the availability when you book, these fares may change.

  • To pick up cheap tickets from HKG to SFO, reserve your trip seven months before your planned departure.

  • June is the cheapest month for flights from Hong Kong International Airport to San Francisco International Airport. If you're looking to fly during a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • Save time looking for cheap flights from HKG to SFO by creating a Price Alert. You'll receive an email or push notification on the app when a new low fare is offered.

  • Tailor your flights using filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Hong Kong International Airport to San Francisco International Airport.

Handy information about Hong Kong International Airport (HKG)

  • You'll find HKG at 1 Cheong Hong Rd.

  • Of all flights leaving Hong Kong International Airport, 73.04% arrive on time at their destination.

  • Central Hong Kong to Hong Kong International Airport is approximately 32 kilometres. Depending on traffic, it'll take you about 30 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Expect a trip time of about 45 minutes when using public transport.

  • Get your holiday off to a leisurely start by staying near HKG. Whether you're taking an early flight from Hong Kong International Airport to San Francisco International Airport or just don't like being rushed, these hotels have you covered:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • From San Francisco International Airport, San Francisco is approximately 21 kilometres away. It takes around 20 minutes to get to the centre driving.

  • Getting to the centre by public transport typically takes 45 minutes.

When to fly to San Francisco International Airport (SFO)

  • The quietest month for a flight from Hong Kong International Airport to San Francisco International Airport is February, while August is the busiest. Pick the ideal time to go to San Francisco based on whether you prefer a more relaxed vibe or a faster pace.

  • Book your flight from Hong Kong International Airport to San Francisco International Airport for September if you'd like to explore San Francisco during its warmest month. Expect temperatures of between 12ºC and 22ºC.

  • January has average temperatures of between 6ºC and 16ºC. Look for cheap tickets from HKG to SFO sometime around then if you like travelling in cooler conditions.

Explore more of United States

  • You've seen San Francisco, now it's time to explore other corners of United States. Journey around 64 kilometres south-east to San Jose to tick off its leading sights. From Winchester Mystery House to Rosicrucian Egyptian Museum and San Jose Museum of Art, your itinerary will be busy.

  • Around 257 kilometres south-east of San Francisco, Fresno is another favourite stop in United States. Get a taste of what this destination has to offer at Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.