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Cheap flights from Hong Kong to San Diego from HK$3,226

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 9-12. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAN
17 Dec — 24 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hong Kong to San Diego

Keep the following information in mind while searching for Hong Kong to San Diego flight deals. Data was last updated 17 November 2025.

Round-trip from

HK$6,327

One-way from

HK$3,226

Popular in

August

Cheapest in

July

Average price

HK$13,314
Air Canada
  • Air Canada
  • 20-2-24-2
  • 4 total stops
  • 76h 47m total
  • Hong Kong to San Diego
Search Deals
9-12
  • 9-12
  • 3 total stops
  • 44h 35m total
  • Hong Kong to San Diego
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (HK$2,116 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$3,177 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Hong Kong to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Hong Kong to San Diego
Explore the most affordable flight options available from Hong Kong to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 November 2025.

Fri 5-1220:25HKG - SAN
2 stops27h 41mAir Canada
Sun 7-1208:45SAN - HKG
2 stops41h 55mAir Canada
Deal found 15-11HK$6,327
Fri 5-1220:25HKG - SAN
1 stop36h 59mMultiple Airlines
Sun 7-1206:15SAN - HKG
2 stops31h 30mMultiple Airlines
Deal found 15-11HK$7,819
Wed 10-1215:30HKG - SAN
2 stops24h 00mMultiple Airlines
Wed 24-1212:10SAN - HKG
2 stops28h 50mMultiple Airlines
Deal found 16-11HK$9,179
Wed 10-1220:25HKG - SAN
2 stops32h 25mAir Canada
Thu 25-1212:42SAN - HKG
2 stops37h 58mAir Canada
Deal found 17-11HK$9,987
Wed 31-1210:20HKG - SAN
1 stop15h 25mMultiple Airlines
Wed 7-112:45SAN - HKG
1 stop37h 55mMultiple Airlines
Deal found 16-11HK$10,804
Wed 10-1220:25HKG - SAN
1 stop31h 38mAir Canada
Wed 24-1216:10SAN - HKG
2 stops58h 30mAir Canada
Deal found 16-11HK$11,138

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 17 November 2025.
Use the filters below to find and compare flights from Hong Kong to San Diego that are best for you.

Fly from

Hong Kong

Fly to

San Diego

Route

Departure

Return

Price

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 20-2

20:25-14:49

2 stops34h 24m

San Diego

Tue 24-2

16:00-18:40

2 stops34h 40m

HK$6,327

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 5-12

20:25-17:24

1 stop36h 59m

San Diego

Sun 7-12

18:10-18:40

1 stop32h 30m

HK$6,933

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 27-3

19:40-00:04

2 stops19h 24m

San Diego

Sat 11-4

18:45-08:50

2 stops23h 05m

HK$6,956

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 20-2

20:05-09:57

2 stops29h 52m

San Diego

Tue 24-2

15:44-10:25

2 stops26h 41m

HK$7,259

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 20-2

22:45-23:40

1 stop16h 55m

San Diego

Tue 24-2

11:05-06:45

2 stops27h 40m

HK$7,329

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 27-3

22:45-23:40

1 stop15h 55m

San Diego

Sat 11-4

19:44-18:55

1 stop32h 11m

HK$7,632

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Tue 9-12

07:10-11:45

3 stops44h 35m

HK$3,226

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Mon 15-12

21:05-11:45

3 stops54h 40m

HK$3,226

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Fri 30-1

20:05-08:35

2 stops28h 30m

HK$3,513

Hong KongSan Diego

HKG - SAN

HKGSAN

Hong Kong Intl

Wed 10-12

13:40-08:39

2 stops34h 59m

HK$3,723

Flights are sorted by cheapest return flights first.

Deals found on 15-11

Showing 1-10 of 16 results
1
2

Best time to book a flight from Hong Kong to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Hong Kong 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 from Hong Kong to San Diego

What is the cheapest month to book a flight from Hong Kong to San Diego?

Currently, July is the cheapest month in which you can book a flight from Hong Kong to San Diego (average of HK$3,568). Flying from Hong Kong to San Diego in August is currently the most expensive (average of HK$8,239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HK to SAN?

Find hourly flight availability from Hong Kong to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 November 2025.

When flying from Hong Kong to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 38% versus a flight at midday.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated 17 November 2025.
See what other customers who have flown with United Airlines from Hong Kong to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,015 reviews
Check prices

Overall

7.4

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,015 reviews
United Airlines
7.4
Good
9,015 reviews
Check prices

Overall

7.4

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Hong Kong to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Hong Kong?

    San Diego (SAN), located 4.2 km from the city centre, is the airport you fly into when you book flights from Hong Kong to San Diego.

  • How long is the flight from Hong Kong to San Diego?

    A quick flight from Hong Kong to San Diego can take about 34h 24m. Air Canada provides one of the quickest options available for as low as HK$6,327. Airlines will cover a distance of 11829 km.

  • What is the cheapest airline to fly from Hong Kong to San Diego round-trip?

    Currently priced at HK$6,239, United Airlines will fly you from Hong Kong to San Diego and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is 45% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Hong Kong to San Diego that include hotel bookings?

    Yes. In addition to deals on Hong Kong to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to San Diego.

  • Can I find deals for business class flights from Hong Kong to San Diego?

    Yes. Cheapflights offers flight deals from Hong Kong to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hong Kong to San Diego?

    Currently, July is the cheapest month in which you can book a flight from Hong Kong to San Diego (average of HK$3,568). Flying from Hong Kong to San Diego in August is currently the most expensive (average of HK$8,239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Hong Kong to San Diego

Discover the top airline that operate flights from Hong Kong to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 17 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestHK$6,239AverageHK$10,265FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Hong Kong to San Diego?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hong Kong to San Diego. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to San Diego?

Cheapflights simply makes it quick and affordable to book flights from Hong Kong to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Hong Kong to San Diego with no change fees?

Need flexible booking options for your flight to San Diego from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Hong Kong to San Diego become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Hong Kong today and book when prices fit your budget.

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