HKG - SFO

£354 Find Cheap Flights from Hong Kong to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Hong Kong to San Francisco departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£522
Typical prices: £749-£631
United Airlines
Fri 19/6Sat 4/7
HKG - SFO • Direct
Cheapest direct flights
£704
Typical prices: £767-£692
United Airlines
Mon 22/6Mon 6/7
HKG - SFO • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
For a smooth departure, use the Courtesy Channel at HKG.
Double check your boarding info on United flights.
Expert advice
Expert advice
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Expert advice
Expert advice
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Direct flights
You can fly direct with Cathay Pacific and United Airlines. Average duration is 12h 40m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 4% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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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 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Hong Kong to San Francisco

Fri, 19 Jun - Sat, 4 Jul
United Airlines Logo
11:45 - 09:50
HKG
-
SFO
13h 05mdirect
United Airlines Logo
19:45 - 05:40
SFO
-
HKG
18h 55m
1 stop
£522United Airlines
Mon, 22 Jun - Mon, 24 Aug
United Airlines Logo
22:30 - 20:35
HKG
-
SFO
13h 05mdirect
United Airlines Logo
10:25 - 18:30
SFO
-
HKG
17h 05m
1 stop
£525United Airlines
Wed, 17 Jun - Fri, 3 Jul
United Airlines Logo
11:45 - 09:50
HKG
-
SFO
13h 05mdirect
United Airlines Logo
21:00 - 18:30
SFO
-
HKG
30h 30m
2 stops
£526United Airlines
Mon, 22 Jun - Mon, 6 Jul
United Airlines Logo
21:45 - 07:35
HKG
-
SFO
24h 50m
1 stop
United Airlines Logo
13:45 - 18:55
SFO
-
HKG
14h 10mdirect
£528United Airlines
Sun, 31 May - Thu, 6 Aug
Delta Logo
00:45 - 00:03
HKG
-
SFO
38h 18m
2 stops
Delta Logo
16:39 - 05:05
SFO
-
HKG
21h 26m
1 stop
£600Delta
Fri, 19 Jun - Sun, 28 Jun
Delta Logo
09:25 - 08:23
HKG
-
SFO
37h 58m
1 stop
Delta Logo
18:19 - 05:05
SFO
-
HKG
19h 46m
1 stop
£602Delta
Mon, 22 Jun - Mon, 24 Aug
Delta Logo
09:25 - 08:23
HKG
-
SFO
37h 58m
1 stop
Delta Logo
16:15 - 05:05
SFO
-
HKG
21h 50m
1 stop
£602Delta
Wed, 3 Jun - Thu, 29 Oct
Delta Logo
00:45 - 23:57
HKG
-
SFO
38h 12m
2 stops
Delta Logo
06:00 - 23:10
SFO
-
HKG
26h 10m
2 stops
£605Delta
Mon, 22 Jun - Mon, 24 Aug
Delta Logo
09:25 - 15:53
HKG
-
SFO
21h 28m
1 stop
Delta Logo
06:00 - 22:45
SFO
-
HKG
25h 45m
2 stops
£607Delta
Tue, 2 Jun - Wed, 5 Aug
Delta Logo
00:45 - 16:57
HKG
-
SFO
31h 12m
2 stops
Delta Logo
20:12 - 05:05
SFO
-
HKG
17h 53m
1 stop
£608Delta
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.

How much is a return flight from Hong Kong to San Francisco?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Hong Kong to San Francisco departing in June.

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 Wednesday and more expensive on a Friday. On your return trip to Hong Kong, you should consider flying back on a Sunday, 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 £517 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £816 and £804 respectively.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £558 on average.

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 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 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 specialising 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 favourite 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.

Good to know - Cheap tickets from Hong Kong to San Francisco

Low seasonNovember
Cheapest flight£354
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from Hong Kong to San Francisco

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 
NoelFlew with Cathay Pacific
HKG
-
SFO
Mar 2026
Baggage handilng make sure to report any issues, like lost or damage immidiately, even if you miss your connecting flight , they will reschedule you, but if you have a fixed schedule, report as soon as possible , happend to my recent flight march 24,2026
KaushalendraFlew with American Airlines
HKG
-
SFO
Apr 2026
Don’t book via third party apps for Cathay Pacific flights, they don’t recognize the itinerary and won’t be able to even view details like airport terminals or gate numbers
Verified travelerFlew with United Airlines
HKG
-
SFO
Feb 2026
Prepare to bring your own food & snacks on board to eat, food on plane sucks, very cold on plane
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
Sept 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
Sept 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

  • What is the cheapest flight from Hong Kong to San Francisco?

    In the last 3 days, the lowest price for a flight from Hong Kong to San Francisco was £354 for a one-way ticket and £522 for a return.

  • 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.

  • 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.

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 direct 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 direct flights

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

Information on your arrival and departure airports